In Excel: go to Review ▸ Unprotect Sheet, enter the password if one was set, and the sheet becomes fully editable again.
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Open the Review tab and look for Unprotect Sheet (it replaces Protect Sheet while protection is on).
Click Unprotect Sheet.
If prompted, type the password that was used to protect it and click OK.
Confirm the sheet is editable — try typing in a previously locked cell.
What this does
Unprotecting a sheet removes the editing restrictions that Protect Sheet imposed, so every cell can be changed again. The control sits on the Review tab: if the sheet was protected without a password, one click of Unprotect Sheet frees it; if a password was set, Excel asks for it first. Removing protection is purely about re-enabling edits — it has nothing to do with opening an encrypted file, which needs the file password instead. Before you run it on a workbook other people depend on, try it on a copy or a few rows first. Undo only reaches back through the current session, so a quick trial run is the cheapest way to see exactly what will change before the file is saved and shared. Treat “unprotected cell in excel” as a small repeatable workflow rather than a one-off click you hope to remember next time. Use a small test block before the live file, so any surprise in the affected cells shows up while it is still harmless. When this is a ribbon command, the selection matters more than the button: confirm the range, apply the command, then spot-check the output before saving. That turns a workspace setting that makes a big sheet comfortable to navigate into a method you can reuse, explain, and defend when the workbook leaves your screen.
A worked example
A budget sheet shows "cell is protected" whenever you try to type. Go to the Review tab and click Unprotect Sheet. If a password was set, a box appears — enter it, click OK, and the protection lifts; the button now reads Protect Sheet again and every cell accepts input. If no password was ever set, the single click is all it takes and no prompt appears. You unprotect a sheet whenever locked cells are blocking a legitimate edit — updating a template someone secured, correcting a figure in a protected report, or reworking a form. It is the deliberate step that hands editing control back, the exact reverse of Protect Sheet. When the result is not what you expected, undo straight away rather than repairing it by hand — undo restores the sheet exactly, while manual fixes tend to leave small inconsistencies behind that surface later.
In Google Sheets
This is a command rather than a formula, so there is no syntax to carry over. Google Sheets arranges its commands in menus across the top instead of a ribbon, names some of them differently and does not have every Excel command — look for the equivalent in the Sheets menus or its help before assuming the steps match. The aim was to get you unstuck fast and leave you a little more capable than a copy-paste would. The answer is at the top and the detail above shows why it holds — so the next time a colleague asks, you can answer without reaching for search. Treat “unprotected cell in excel” as a routine rather than a one-off. Once you know which setting or command controls it, the same few steps handle every workbook where it comes up in Excel, and you can explain them to a colleague in a sentence.
Common mistakes
- Trying to unprotect without the password: there is no legitimate built-in bypass, so you genuinely need the password that was set.
- Confusing a protected sheet with an encrypted file — a file that will not open needs its open-password, not Unprotect Sheet.
- Unprotecting the wrong sheet in a multi-tab workbook; each sheet is protected and unprotected separately.
- Forgetting that workbook structure protection (locked tabs) is removed via Unprotect Workbook, a different button on the same tab.
Frequently asked questions
I forgot the sheet password — how do I unlock it?
Honestly, you need the password; Microsoft provides no official bypass for sheet protection. Store passwords where you can retrieve them, and ask whoever protected the sheet.
Is unprotecting the same as decrypting the file?
No. Unprotect Sheet re-enables cell editing; an encrypted file that refuses to open needs its open-password through the normal open dialog, not the Review tab.
How do I unprotect every sheet at once?
Excel has no one-click "unprotect all"; unprotect each tab in turn, or use a short VBA loop if you have the password for each.