Arcelum.OS
Microsoft OneDrive connection test
This is a separate sign-in test page. It contains no Arcelum surveys, photographs or building records.
Ready to test Microsoft sign-in.
Manual Arcelum backup — test
Select an existing Arcelum JSON backup. It will be saved as a new, uniquely named file in Arcelum-Test, then downloaded again for an exact content check. Nothing is restored or overwritten.