All Things OneDrive

This post contains information on my research into Microsoft OneDrive. Content may be updated regularly.

<User.Cid>.dat

Maintains a reference to every active file and folder in OneDrive, including locally stored files and those available only in the cloud.

<UserCid>.dat format

ODL Files

OneDrive telemetry and debugging logs.

ODL format 

OneDrive Evolution

A representation of the OneDrive profile folder throughout different versions. It is represented in a collapsible indent tree with special emphasis on SQLite, JSON , and INI files.

OneDrive Evolution