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 you see The file couldn't open in protected view error while opening Microsoft Excel, the fixes listed in this post will help you.

Microsoft Office 2010 includes a new "Protected View" that, by default, will open all Outlook attachments and documents downloaded from the Internet in "read-only" mode.