The first thing you should do here is to close all programs that are using the Excel file you are attempting to open. Please ensure the .xls file is not opened in other workbooks, add-ins, or apps.

Step 3. Select the unsaved Excel temporary files you want to recover. They are often shown as files with “.tmp” extensions. Right-click and open them with Excel on your Mac to see if you can ...

Microsoft on Thursday released a pair of updates to fix a problem with Open XL documents: Microsoft Office 2008 for Mac 12.2.1 Update and Microsoft Office Open XML File Format Converter 1.1.1 ...