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

SyncEngineDatabase.db

Replaced <User.Cid>.dat in newer version of OneDrive.

SyncEngineDatabase.db Schemas 

SafeDelete.db

Stores information on deleted items.

SafeDelete.db Schemas 

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