Gzipped OneDrive Event Log
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What is an ODLGZ file?
An ODLGZ file is a OneDrive event log (.ODL file) that has been compressed using GNU zip (gzip) compression. It contains a list of events that occurred while a user was using the desktop version of OneDrive. Microsoft can use the log an OLDGZ file contains to troubleshoot any synchronization issues that occur as a result of a user editing a file offline.
Individuals, organizations, and businesses use Microsoft OneDrive to host and share files. Primarily, users access OneDrive online in their web browser. However, users can also install a desktop version of OneDrive. In the desktop version of OneDrive, users can access and edit files offline.
The desktop versions of OneDrive store a record of users' actions in an ODL file. If the desktop version of OneDrive fails to sync an action to a user's OneDrive account, Microsoft can review the associated ODL file to help them troubleshoot the error.
When OneDrive creates a new ODL file, it compresses the previous ODL file into an ODLGZ file. This prevents ODL files from taking up too much space on a user's computer.
OneDrive stores ODLGZ files are stored in the following locations by default:
- Windows: C:/Users/[USER]/AppData/Local/Microsoft/OneDrive/logs
- Mac: ~/Users/[USER]/Library/Logs/OneDrive
How to open an ODLGZ file
While ODLGZ files are not meant to be opened, you can view the contents of your ODLGZ files using GitHub user ydkhatri's OneDrive Log ODL Reader (multiplatform).