Journal files capture the actions taken by the software during a session of Revit, from the time the software starts to the time it stops. These text files can be used to troubleshoot technical problems with the software.
Revit creates a new journal file each time you use the software. The journal file with the highest number is the most recent file. By default, journal files reside in the following location:
The Journal folder is hidden by default in Windows.
If you encounter problems during a Revit session, your support provider may ask you to send the journal file and any backup files to help with the troubleshooting process. If you do not encounter problems during a session, the journal file is of little use and can be deleted. To automate the deletion of old journal files, see General Options.