You can check compatibility between versions of your Microsoft Office files to see if features in a file are supported by older versions of Office by using Compatibility Checker.
To check compatibility with an older version of Office
Click the File tab, and then click Info.
Click Check for Issues, and then click Check Compatibility.
In TE102750838 2016, on the Info tab, click Check Compatibility.
Any issues between the versions are listed under Summary in the Compatibility Checker window.
Note: Selecting Check compatibility when saving documents in the Compatibility Checker window causes the Office application to automatically check for compatibility issues when you save your file as an earlier version.
To save your file in an earlier Office format, see Save a file.