I have a password protected xlsx file that somehow became corrupt. I've tried the automatic repair feature in office 2010 with no luck. I've also tried various excel recovery programs that I've d ...

It is possible to create a macro in an Excel sheet that unlock the sheet which is already protected by a password. Users can easily prepare a document in the sheet and then lock it again with a ...

Whether you’ve forgotten the password or received a protected file from someone else, unlocking an Excel spreadsheet without the password may seem like an insurmountable challenge.

How to Unlock Protected Spreadsheets. You can't edit or copy the contents of a protected Excel worksheet unless you first unlock the protection. If unlocking the worksheet doesn't require a ...

A recommended approach to secure your most private documents — whether it’s a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode. While this does help keep sensitive ...

I'm going to hazard a guess that it was being saved in compatibility mode in the original excel format. Somebody "updated" it, and the password protect would have died with it.

There are several options available to you to protect your Excel file with a password. Remember that once you protect the Excel file, you cannot open it without entering the password.

At the file level, you can password protect an Excel workbook in two ways: You can determine who can get in and who can save changes.