...
All data is stored in a H2 Database. This database is stored at the tomcat root in a folder called graphomate named auditing.db.
Export
To export the Auditing data, you need to log in to the Admin, and click on Audits. Then you should click the "EXPORT" button. The export will run in the background, and will show a dialog when it's finished. It will tell you the path on the server where the csv file can be found. All usernames in the exported file are anonymized, and can't be translated back to the real usernames.
...