Didn't save your Excel workbook on a Mac? Here are four methods for recovering lost or unsaved Excel files on your Mac.

Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.

If you enabled File History (it's disabled by default), all you have to do is use it to recover the file. File History saves the state of the included folders at a specific time.

If files are deleted on purpose, there may be a reason you’ll need to recover a past draft or a version. Here’s your guide to learn how to recover deleted files.