Using basic capabilities > Overview of using basic capabilities > History > Viewing history for files
  
Viewing history for files
To view the History for Files, for example deleting a diagram or modifying a definition, do this:
1 Select Tools > History > Purge.
2 In the Purge History dialog box, select an option, and then click Preview.
The Records to Purge dialog appears
3 Select the Files tab to view the diagram files changes that have been made.
This graphic is described in the surrounding text.
See also
Object history and property comparison
Purging history
History