This tutorial will show you how to remove disable or turn off the Compatibility Mode in Microsoft Excel. Without Compatibility Mode, some documents may display incorrectly.

If the file opens in read-only mode, you may still make changes and use the "Save As" command to save the file to a new name. Save the file in the Excel 2003 or 2007 format, but with a different name.

You can edit and save Excel 2003 files in Excel 2007. While you are using a file in compatibility mode, grayed-out menu choices indicate that the feature is unavailable in Excel 2003.