Excel Practice Test

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Learning how to remove read only from Excel is one of those small skills that saves enormous frustration when a critical spreadsheet refuses to accept edits, a downloaded report opens in a protected state, or a shared file blocks your cursor from entering a single cell. Whether you opened a workbook tagged as Final, inherited a file with a password-protected sheet, or downloaded an attachment that triggered Protected View, the steps to regain editing rights are predictable, fast, and entirely safe when you understand which type of restriction is actually in play.

Excel uses at least six distinct mechanisms that can make a file appear read only, and the fix depends on which one you are facing. The file attribute can be flipped at the operating system level. The Mark as Final flag can be removed inside Excel itself. Protected View kicks in for files originating from the internet or email attachments. Workbook structure protection and worksheet protection require either the password or a workaround. And shared workbooks, OneDrive lock states, and SharePoint check-outs each have their own toggle.

This guide walks through every legitimate method for unlocking a spreadsheet you own or have permission to edit. We cover the Windows File Explorer attribute fix, the Excel ribbon options, the VBA approach for stuck sheets, and the cloud workflow for OneDrive and SharePoint files. Along the way, you will learn how Excel decides when to lock a document, why the Enable Editing banner appears, and how to permanently disable Protected View when you trust the source. By the end you will resolve every read only scenario quickly.

Read only restrictions exist for good reasons. They prevent accidental edits to template files, stop junior analysts from overwriting board-level reports, and protect formula integrity inside complex models. The mistake is treating every read only message as the same problem. A workbook protected with a password is not the same as a file opened from a network share with insufficient permissions, and the wrong fix can waste hours. Diagnosing the exact lock type first is the single biggest time-saver you can adopt.

This article is written for analysts, students, and office professionals who work in Excel daily and need a reliable reference. We assume you have legitimate access to the file you are trying to edit. We do not cover circumventing encryption you do not own, because Excel passwords on .xlsx files use SHA-512 hashing and AES encryption that cannot be ethically bypassed.

Instead, we focus on the dozens of everyday read only situations where the fix takes seconds once you know where to click. For deeper Excel reference material, browse the Excel Functions List: The Complete Reference Guide to Every Formula You Need in 2026.

You will also pick up complementary skills like how to merge cells in Excel without losing data, how to freeze a row in Excel after unlocking, and how to use remove duplicates Excel features once the workbook is editable again. Many users hit read only walls precisely because they cannot perform basic cleanup tasks. Removing the lock is step one. The second step is rebuilding muscle memory for the editing tools you actually need. We will reference both throughout, with concrete keystrokes and ribbon paths you can apply immediately.

Finally, a quick orientation on terminology. Microsoft uses the phrase read only loosely. It can mean the file attribute, the Mark as Final state, the Recommended Read Only flag, Protected View, an active worksheet protection, or a locked cell within an otherwise editable sheet. We treat each of these as a separate scenario with its own fix, and we list them in the exact order you should test when troubleshooting an unfamiliar file. Follow the sequence below and you will never get stuck on a locked spreadsheet again.

Read Only in Excel by the Numbers

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6
Distinct lock types
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15 sec
Average fix time
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SHA-512
Encryption used
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73%
User cases solved
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2
Cloud platforms
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5 MB
Protected View trigger
Test Your Skills: Free Excel Practice Questions on How to Remove Read Only

7 Methods to Remove Read Only From Excel

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Right-click the file in Windows Explorer, choose Properties, and uncheck the Read-only box at the bottom of the General tab. Click Apply, then OK. This is the fastest fix when the lock originates from the operating system rather than from Excel itself, and it works in under ten seconds.

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Open the workbook, click the yellow Edit Anyway banner at the top, or navigate to File then Info then Protect Workbook and click Mark as Final again to toggle the flag off. The file becomes fully editable instantly, and the lock indicator disappears from the title bar.

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For files from the internet or email, click Enable Editing in the yellow banner. To stop Protected View permanently for trusted folders, go to File, Options, Trust Center, Trust Center Settings, Protected View, and uncheck the three scenario boxes. Apply changes and restart Excel.

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On the Review tab, click Unprotect Sheet. If a password was set, Excel prompts for it. Without the password, you cannot edit protected cells on .xlsx files. Sheet protection is granular, allowing some ranges to remain editable while locking others, so check sheet-by-sheet.

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On the Review tab, click Protect Workbook to toggle structure protection off. This unlocks the ability to insert, delete, rename, hide, or unhide worksheets. Workbook structure protection differs from worksheet cell protection, and both must be addressed if a file uses layered restrictions on the same document.

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If the file was opened from a read-only network share, use File, Save As to save a copy to your local Documents folder. The duplicate inherits no attribute lock and can be edited freely. This bypasses permissions issues on shared drives without requiring administrator access.

The file attribute method handles roughly four out of every ten read only situations in Excel, particularly for files transferred via USB drive, downloaded from a web browser, or copied from a CD. Windows stores a single bit in the file system that flags the document as non-editable, and Excel respects that flag even before opening the workbook. The fix lives entirely outside Excel. Right-click the file in File Explorer, select Properties, and look at the bottom of the General tab where the Read-only checkbox sits next to a Hidden checkbox.

Uncheck Read-only, click Apply, and then OK. The change writes instantly to the file system, and the next time you open the workbook in Excel you will see no banner, no warning, and no editing restrictions. If the checkbox is greyed out, your Windows user account lacks write permission to that file or folder. The solution is either to copy the file to your own Documents directory, run File Explorer as administrator, or ask the file owner to adjust NTFS permissions on the parent folder.

Mark as Final is the second most common scenario. This is an Excel-internal flag, not a file system attribute. It exists to discourage casual edits to a finalized document, but it is purely advisory and offers zero security. Anyone can disable it. When you open a Mark as Final file, the title bar shows MARKED AS FINAL in brackets, the ribbon collapses, and a yellow banner reads This document has been marked as final to discourage editing. Click the Edit Anyway button on the banner and the workbook becomes fully editable.

You can also remove the flag through the File menu. Click File, then Info, then the Protect Workbook dropdown, and click Mark as Final to toggle the state. The icon highlight disappears and the workbook unlocks. This is a useful path when you want to verify which flags are currently active on a document, because the Protect Workbook section lists every protection layer in one place, including encryption, structure protection, and digital signatures.

The Always Open Read-Only option is a third Excel-internal flag that confuses users because it appears in the same Protect Workbook menu. When enabled, every time you open the workbook Excel asks whether you want to open as read only or with full editing rights. To remove it, click File, Info, Protect Workbook, and click Always Open Read-Only to toggle off. You can also choose No when prompted at file open, then immediately save the workbook to clear the recommendation flag permanently.

A related complication is the Recommended Read Only flag set through Save As. When saving, click Tools next to the Save button, choose General Options, and you will see a checkbox for Read-only recommended along with optional passwords for opening and modifying the file. Uncheck the box, save again, and the recommendation disappears. This flag often hitches a ride on template files distributed by employers, so checking and clearing it during onboarding is a useful housekeeping habit. For broader formula reference work after unlocking, see our Freeze Panes in Excel: Complete Guide to Locking Rows and Columns.

For files stored on network shares, the read only state often comes from NTFS permissions rather than Excel itself. Open File Explorer, navigate to the file, right-click, choose Properties, and click the Security tab. Look at your user account or one of the groups you belong to and verify that Write and Modify are both checked. If they are not, you cannot save changes to that location regardless of what Excel says. The workaround is to save a copy locally, edit it, and request elevated permissions if you need to push changes back to the share.

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Protected View, Trust Settings, and Working With vlookup excel After Unlocking

๐Ÿ“‹ Protected View Triggers

Protected View activates automatically when Excel detects a file from a potentially unsafe origin. The three main triggers are files downloaded from the internet, files received as Outlook attachments, and files opened from locations Excel has flagged as unsafe. The yellow banner reads PROTECTED VIEW with a security explanation and an Enable Editing button. Until you click Enable Editing the workbook is fully read only, including formula recalculation and macro execution, even though no encryption or password is involved.

To disable Protected View permanently for trusted scenarios, click File, Options, Trust Center, Trust Center Settings, and Protected View. You will see three checkboxes for the three triggers. Uncheck only the ones you understand the risk of, ideally leaving internet downloads protected since this is the highest-risk channel. Click OK twice and restart Excel for changes to apply. You can also designate specific folders as Trusted Locations to bypass Protected View only for files saved there.

๐Ÿ“‹ Trusted Locations

Trusted Locations let you whitelist folders so that Excel skips Protected View, macro warnings, and external content prompts for any file saved inside. Open File, Options, Trust Center, Trust Center Settings, Trusted Locations, and click Add new location. Browse to the folder, optionally check Subfolders of this location are also trusted, and add a description. Common choices are your Documents folder, a project share you control, or a templates directory that your team uses daily for routine reporting workflows.

Use Trusted Locations sparingly because they create a security gap. Any file saved to a trusted folder runs macros without warning and bypasses Protected View entirely. Never trust public network shares, downloads folders, or any directory where external users can write files. For shared team workflows, keep Trusted Locations restricted to read-only template repositories where only senior staff can deploy new files, and require code review on any macro-enabled workbook before it reaches the trusted directory.

๐Ÿ“‹ VLOOKUP After Unlock

Once a workbook is unlocked you regain access to powerful formulas like vlookup excel, XLOOKUP, INDEX MATCH, and dynamic array functions. VLOOKUP requires four arguments: the lookup value, the table range, the column index number, and an exact-match flag set to FALSE. The most common error after unlocking is that the lookup table itself remains protected at the cell level, returning hash N slash A errors even though the formula appears correct. Verify both sheets are unprotected.

If VLOOKUP returns hash REF errors after editing a previously locked workbook, the column index probably points outside the table range. Use XLOOKUP instead when you have Excel 365 or Excel 2021, since it handles dynamic column references and returns hash N slash A only when the lookup value genuinely does not exist. Combining XLOOKUP with the IFERROR wrapper produces clean output even on incomplete datasets. Document your formulas with cell comments once editing rights are restored to prevent future confusion among collaborators.

Should You Remove Read Only Protection From an Excel File?

Pros

  • Restores full editing rights instantly without rebuilding the workbook from scratch
  • Allows you to update formulas, add new rows, and refresh pivot tables on inherited files
  • Removes the yellow banner that obscures cell A1 and the formula bar
  • Enables macro execution which is blocked under Protected View for security reasons
  • Lets you save the file in modern formats like .xlsx and .xlsm with full feature support
  • Makes collaboration smoother when multiple analysts need write access to the same workbook

Cons

  • May overwrite intentional protection set by the original author for compliance reasons
  • Removes the audit trail signal that indicated the document was finalized or approved
  • Could expose you to malware if Protected View is disabled for untrusted internet downloads
  • Disables the recommendation flag warning future users that the file should not be edited
  • Requires you to re-establish protection later if the document needs to be locked for stakeholders
  • Risks accidental edits to formulas or formatting that you intended to preserve in their original state

Complete Checklist: Remove Read Only From Excel

Check the title bar for [Read-Only], [MARKED AS FINAL], or [Group] indicators before troubleshooting
Right-click the file in Windows Explorer and uncheck the Read-only attribute on the Properties dialog
Click Edit Anyway on the yellow Mark as Final banner inside Excel to disable the flag
Click Enable Editing on the Protected View banner if the file came from email or the internet
Go to File, Info, Protect Workbook and verify no encryption, structure, or sheet protections are active
Use Review, Unprotect Sheet on each tab and enter the password if you have it
Use Review, Unprotect Workbook to remove structure-level locks that prevent adding or renaming sheets
Save the file with Save As to a local folder if the original location has read-only network permissions
Verify NTFS Security tab permissions show Write and Modify for your Windows user account
Toggle off Always Open Read-Only inside File, Info, Protect Workbook for permanent fix
Identify the lock type first to save 80 percent of troubleshooting time

The single biggest mistake users make is applying random fixes without first checking the title bar and the yellow banner messages. A file showing [Read-Only] in the title bar needs the file attribute toggle, while [MARKED AS FINAL] needs the Edit Anyway button. Reading the actual indicator text before clicking anywhere saves hours of trial and error across hundreds of locked files.

Worksheet protection is the most granular lock type in Excel and the one users encounter most often in shared templates. When a sheet is protected, Excel blocks edits to any cell whose Locked property is set to True, which by default is every cell. The author can selectively unlock specific ranges before applying protection so that data entry continues to work in those cells while formulas and headers remain frozen. To check whether a sheet is protected, look at the Review tab. If you see Unprotect Sheet instead of Protect Sheet, the lock is active.

Click Unprotect Sheet to remove the lock. If no password was set, the sheet unlocks instantly. If a password is required, Excel prompts you to enter it. For .xlsx files the password is hashed and salted using strong cryptography, meaning that without the original password you cannot legitimately remove sheet protection. Older .xls files used a weak algorithm that has been broken, but Microsoft has not used that algorithm in over fifteen years. Contact the file author when you need a forgotten password.

Workbook structure protection is separate from worksheet protection. It prevents users from inserting, deleting, renaming, moving, hiding, or unhiding worksheets, but it does not affect cell-level editing. To toggle it off, click Review, Protect Workbook. If structure protection is active, the button is highlighted. Click it, enter the password if prompted, and the dropdown menu items for sheet management become available again. This is essential when you need to add a new tab to an inherited workbook for additional analysis or reporting.

The Allow Edit Ranges feature offers a middle path. Available on the Review tab, it lets the workbook author define specific ranges that remain editable even when the rest of the sheet is protected. Each range can have its own password, allowing different team members to edit different sections without unlocking the entire sheet. To view the ranges defined on a sheet, click Review, Allow Edit Ranges. This is helpful when you have partial editing rights but need to identify exactly which cells you can modify.

For more advanced scenarios, VBA can interact with protected sheets programmatically. The Worksheet object has Protect and Unprotect methods that accept a password parameter. If you are the legitimate owner of a macro-enabled workbook and have lost track of which sheets are protected, you can write a short routine that loops through every sheet, calls Unprotect with the known password, and reports back any that fail. This is significantly faster than clicking through every tab manually on a workbook with thirty or more sheets in it.

Cell-level locking is the foundation that worksheet protection builds on. Every cell has a Locked property in its Format Cells dialog under the Protection tab. By default, all cells are locked, but the lock only takes effect when sheet protection is active. To prepare a sheet so that users can enter data in specific cells while formulas stay protected, select the data-entry cells, open Format Cells with Ctrl plus 1, go to the Protection tab, and uncheck Locked. Then apply sheet protection. The unlocked cells remain editable while everything else stays frozen.

A common confusion involves the Hidden checkbox on the same Protection tab. When checked and combined with active sheet protection, this hides the formula in the formula bar while still displaying the result in the cell. It does not hide the cell itself. Many users assume Hidden means invisible, when it actually means formula-hidden. To truly hide cells you need to hide entire rows or columns, or use custom number formatting with three semicolons to display nothing in the cell while preserving the underlying value.

Cloud-based locks add a fourth dimension to read only troubleshooting. When you open a workbook from OneDrive, SharePoint, or Microsoft Teams, the file may be locked because another user has it checked out, because co-authoring is disabled on that file type, or because the file is stored in a read-only library where your account lacks contribute permissions. The title bar in Excel typically shows the editing state alongside the username of whoever currently holds write access, which makes diagnosing cloud locks straightforward.

For SharePoint document libraries, check the file in the library view. A green arrow on the file icon indicates someone has it checked out. Click the file menu and choose Check In to release the lock if you are the one who checked it out, or contact the named user to release it if they hold the check-out. Some libraries enforce mandatory check-out which means any edit requires explicit check-out before opening. In that case use the Check Out option from the library before opening the file in Excel desktop.

OneDrive auto-save can create a different kind of read only state. When the OneDrive client loses connection to the cloud, Excel sometimes opens cached copies in read only mode to prevent conflicting edits. The fix is to verify the OneDrive icon in your system tray shows a green checkmark indicating sync is current. If you see a paused or error icon, click it, resolve the sync issue, and reopen the workbook. Files that have unsynced conflicts may also open as read only until you manually resolve the conflict in the OneDrive folder.

Co-authoring conflicts are a related issue. When two users open the same workbook simultaneously and one of them is using an older Excel version that does not support co-authoring, the second user may be forced into read only mode. The fix is to ensure everyone is on Excel 365 or Excel 2019 and later, that the file is stored on OneDrive or SharePoint, and that the file is in .xlsx format. Files in .xls or .xlsb format do not support co-authoring and force read only access for additional users.

For Microsoft Teams files, the underlying storage is SharePoint, so the same check-out and permission rules apply. Open the file in the Teams app or click Open in desktop app to launch Excel locally. If you see read only after opening, click the editing state indicator next to the file name and choose Edit in desktop app or Edit in browser. Teams sometimes opens files in viewing mode by default for users with edit permissions, particularly when accessed through chat attachments rather than the Files tab.

Network drive permissions create yet another category. Files stored on a corporate file server use NTFS permissions that determine read, write, and modify access at both the file and folder levels. Even if Excel itself has no protection applied, if your domain account lacks Modify permission on the folder, you cannot save changes.

Right-click the file, choose Properties, click Security, and verify your account has the necessary rights. If not, request the change from your IT administrator or save a local copy as a workaround. For analytical tasks afterward, our Excel Data Analysis Toolpak: Complete Guide to the Analysis ToolPak Add-In shows how to extend Excel capabilities.

Finally, version history can rescue you from accidental over-protection. If you applied a password to a workbook and then forgot it, OneDrive and SharePoint both maintain version history for files. Right-click the file in the cloud interface, choose Version history, and restore a version saved before the password was applied. This works because earlier versions exist as separate copies in cloud storage and retain whatever protection state they had at save time. Version history typically retains versions for thirty days by default on Microsoft 365 cloud storage accounts.

Practice Excel Formulas: VLOOKUP, INDEX MATCH, and Remove Duplicates Excel

Once you have successfully removed the read only state from your workbook, the next priority is establishing good habits that prevent future lockouts and let you take advantage of the editing tools you just regained. Start by saving a clean copy of the file under a new name so you preserve the original locked version as a reference. Use File, Save As, and add a date stamp to the filename like ReportName-2026-05-20-editable.xlsx. This convention makes it trivial to track which version you have been editing and which version came from the original source.

If the workbook contains complex formulas, take a moment to explore them now that editing is restored. Functions like vlookup excel for table lookups, INDEX MATCH for two-way lookups, and the modern XLOOKUP all benefit from being tested with sample inputs while you have full edit rights. Press F2 on any formula cell to enter edit mode, then F9 on selected portions of the formula to evaluate just that part. This reveals exactly what each chunk returns and helps you understand inherited spreadsheets that previous analysts built without documentation.

Learn the keystrokes for the most common editing operations. How to merge cells in Excel uses Alt, H, M, M for merge and center on a Windows keyboard. How to freeze a row in Excel uses Alt, W, F, R to freeze the top row instantly. How to create a drop down list in excel uses Alt, A, V, V to open Data Validation. Remove duplicates excel lives at Alt, A, M on the Data tab. Memorizing these shortcuts pays back the investment within a single week of regular Excel use, and they work identically across most modern versions.

Document the protection scheme before you reapply it. If the workbook originally had sheet protection on specific tabs, write down which tabs were protected, what password was used, and which cells were left editable. Store this in a separate text file or in a password manager entry tied to the workbook. This documentation prevents future colleagues from facing the same lockout situation you just resolved, and it ensures continuity if the workbook owner leaves the team or forgets the original credentials they applied.

Consider whether protection is even needed. In many cases, accidental edits can be prevented through workbook design rather than protection. Use color coding to mark cells as inputs versus outputs, add data validation rules to constrain entries, and create named ranges that make formulas readable. These design choices reduce errors without locking anyone out. Protection should be reserved for cases where you genuinely cannot trust users to follow conventions, such as workbooks distributed to large groups or models that drive financial decisions with regulatory implications.

Set up version control if multiple people will edit the workbook. The simplest approach is to store the file on OneDrive or SharePoint with version history enabled. Every save creates a new version automatically, and you can restore prior states without manual backup files. For more sophisticated workflows, tools like Git LFS can track Excel files alongside source code, though this requires more setup and is generally overkill for non-developer teams that primarily collaborate within the Microsoft 365 ecosystem on standard reporting workloads.

Finally, build a personal troubleshooting reference. Keep a one-page note that lists the seven read only methods we covered above, with the exact menu paths for each. Pin this note to your desktop or save it in your OneNote. The next time you encounter a locked workbook, you will resolve it in under a minute by working through the diagnosis sequence rather than trying random fixes. This systematic approach is what separates power users from intermediate users, and the payoff compounds across hundreds of workbooks over a typical career working with Excel.

Excel Questions and Answers

How do I remove read only from an Excel file quickly?

The fastest method is to right-click the file in Windows Explorer, choose Properties, and uncheck the Read-only checkbox on the General tab. Click Apply and OK. This handles the file attribute scenario in under fifteen seconds. If the read only state persists after opening the file in Excel, look for a yellow banner that indicates Mark as Final or Protected View, and click the Edit Anyway or Enable Editing button shown.

Why is my Excel file opening as read only even after I unchecked the attribute?

Multiple read only mechanisms can stack on the same file. After clearing the file attribute, check inside Excel for Mark as Final, which shows in the title bar and requires Edit Anyway from the banner. Also check Protected View, common for downloaded files, and the Always Open Read-Only flag under File, Info, Protect Workbook. Network share permissions and OneDrive sync conflicts can also force read only states independently of file attributes.

Can I remove read only without knowing the password?

For .xlsx files using modern AES-256 encryption with SHA-512 password hashing, no legitimate method exists to bypass an unknown password. Tools claiming to crack these passwords either fail outright or take impractical amounts of time on strong passwords. Your options are to contact the original author for the password, restore an earlier unprotected version from OneDrive or SharePoint version history, or rebuild the workbook from source data using your own protection scheme.

What is the difference between Mark as Final and Protected View?

Mark as Final is a soft advisory flag inside Excel that discourages edits to a finalized document but offers no security. Anyone can click Edit Anyway to remove it. Protected View is a security sandbox that opens potentially unsafe files in read only mode to prevent malware execution. It activates for internet downloads, email attachments, and unsafe locations. Both show yellow banners but serve different purposes, and both can coexist on the same file simultaneously.

How do I disable Protected View permanently in Excel?

Navigate to File, Options, Trust Center, Trust Center Settings, and Protected View. You will see three checkboxes for files from the internet, Outlook attachments, and unsafe locations. Uncheck the ones you want to disable, click OK twice, and restart Excel. Use caution since this removes a layer of security against malicious files. A safer alternative is adding specific folders as Trusted Locations under the Trusted Locations panel in the same Trust Center.

How do I remove worksheet protection in Excel 365?

Click the Review tab and look for the Unprotect Sheet button. If it appears instead of Protect Sheet, the worksheet is currently protected. Click Unprotect Sheet, enter the password if Excel prompts for one, and the sheet becomes editable. For workbook structure protection that prevents adding or renaming tabs, use the Protect Workbook button on the same Review tab. Each sheet must be unprotected individually if you have multiple protected tabs.

Why does Excel say a file is locked by another user?

This error appears when you open a workbook from a shared location and another user has it open with write access. Excel offers options to open as read only, receive notification when available, or cancel. The fix is to contact the named user and ask them to close the file, or to wait for the notification. On SharePoint and OneDrive, co-authoring lets multiple users edit simultaneously, but only if everyone uses Excel 365 or 2019 plus.

How do I remove read only from an Excel file on a Mac?

On macOS, right-click the file in Finder and choose Get Info. In the Sharing and Permissions section at the bottom, click the lock icon to authenticate, then change your user account from Read only to Read and Write. Close the Get Info window and reopen the file in Excel. Inside Excel for Mac, the Review menu contains the same Protect Sheet and Protect Workbook options as the Windows version, working identically across operating systems.

Does Save As remove read only protection from an Excel file?

Save As bypasses the file system Read-only attribute since you are creating a brand new file at a new location with default attributes. However, Save As does not remove Excel-internal protections like Mark as Final, sheet protection, workbook structure protection, or encryption. Those flags are stored inside the file itself and persist across Save As operations. You must explicitly remove each protection layer through the appropriate Excel menus before or after the Save As operation.

Can I prevent Excel from opening files as read only in the future?

Yes. Adjust three settings to minimize unwanted read only states. First, add commonly-used folders as Trusted Locations under File, Options, Trust Center, Trust Center Settings, Trusted Locations. Second, disable Protected View triggers for scenarios you trust under the Protected View panel in the same Trust Center. Third, store team files in OneDrive or SharePoint with co-authoring enabled so multiple users can edit simultaneously. Always keep antivirus current to compensate for relaxed Protected View settings.
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