Clicking the "Save data" button downloads that zip file containing a number of csv files (data of the database).
By downloading the backup file, the file is saved on the server in the "../www/upload/backup" folder with an additional ".tmp" at the end of its name.
When you click the "Import / restore" button and choose exatly that downloaded file for upload, choose the "restore backup" option and click the "restore data" button, the webpage is cleared and the message "Bad file format for '../../www/upload/backup/soplanning_20250117-153236.zip.tmp/status.csv'. Import stopped !" appears.

However, the backup file is uploaded on the server to "../www/upload/backup" folder with an additional ".tmp" at the end of its name. All other files which existed earlier in this folder are deleted.
The file contains the database tables...
- config (planning_config)
- feries (planning_ferie)
- groupe (planning_groupe)
- lieu (planning_lieu)
- periode (panning_periode)
- projet (planning_projet)
- ressource (planning_ressource)
- right_on_user (planning_right_on_user)
- status (planning_status)
- user (planning_user)
- user_groupe (planning_user_groupe)
- planning_audit
- planning_projet_user_tarif