Follow these steps depending on how the workbook is locked on Mac.
- If the worksheet is protected (can open but can’t edit cells)
- On the ribbon, go to Review.
- Click Unprotect Sheet.
- If prompted, enter the sheet password.
- After it’s unprotected, you can also unlock specific cells:
- Select the cells or range.
- On the Format menu, click Cells.
- Go to the Protection tab and clear the Locked checkbox.
If you need to unlock graphics/objects:
- Select the graphic or object.
- On the Format menu, choose the appropriate command (for example Shape, Text, Picture, Format Object, or Control).
- Go to Properties or Protection and clear Locked (and Lock text if present).
- If the workbook itself is protected (structure or password)
- Open the workbook.
- On the Review tab, click Protect Workbook or Unprotect Workbook (the button changes depending on current state).
- When prompted, enter the current password.
- Clicking Unprotect Sheet removes the sheet password.
- To remove a workbook password completely, after unprotecting, click Protect Workbook again and click OK without entering a new password.
- If the file is “locked for editing” by another user or by the system
- Make sure the workbook is closed on all devices where the same account is signed in.
- Wait a few minutes so the server can release the lock.
- If someone else has it open, ask them to close it or check it in, or open the file as read-only until they are done.
- If trying to co-author and you still see a lock, make sure the file is saved as .xlsx, .xlsm, or .xlsb.
- If the file is password-protected to open and the password is forgotten
- There is no built-in way in Office to bypass or recover a forgotten open password. The file cannot be opened without the correct password.
If the problem is that Excel becomes unresponsive and won’t let any cells be selected after a while, restarting the Mac has resolved that behavior in similar cases.
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