How to check compatibility issues in an Office Document:-

Microsoft Office is getting polished rapidly. Upgrades from 2003 to 2010 saw sea change in functionality. If you are using 2010 and sending it to your friend who hasn’t upgraded, It is better to do a compatibility check

A check mark appears next to the name of the mode that the document is in.

1. Click the File tab.

2. Click Info.

3. In the Prepare for Sharing section, click Check for Issues, and then click Check Compatibility.

4. Click Select versions to show.