How do I delete a file, and get it back?
A deleted file first goes to the Corbeille (Trash). As long as it’s there, you can get it back.
Step by step
To delete: right-click the file, then Mettre à la corbeille (Move to trash).
To get it back: in the left column of the Cloud, click Corbeille (Trash).
Right-click the file, then Restaurer (Restore): it goes back where it was.
Supprimer définitivement… (Delete permanently…) erases it for good. ArkiaSuite asks you to confirm: after that, there’s no going back.