Caution: When you create a password for a workbook, write down the password and keep it in a secure place. If you lose the password, you can't open or gain access to the password …

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

To lock your file so that other users can't open it, see Protect an Excel file. To protect certain areas of the data in your worksheet from other users, you have to protect your worksheet.

Learn how to sign in, sign out, lock, and switch user account in Windows.

How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.

It may be possible for your IT admins to help with password recovery, but only if they had implemented the DocRecrypt tool before you created the document password. Go to File > …

Follow these steps to lock cells in a worksheet: Select the cells you want to lock. On the Home tab, in the Alignment group, select the Alignment Settings arrow to open the Format Cells …

Use your mobile device to unlock or edit a file that another user has locked for editing.

You are trying to open an Excel file and you get a message about the file being locked. Sometimes the file is locked by another user, and other times the "another user" is actually …

Excel gives you the ability to protect your work, whether it’s to prevent someone from opening a workbook without a password, granting Read-Only access to a workbook, or even just …

Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.