Backup files contain garbled file names. Steven Chan July 19, 2017 10:53 Updated Follow If you are using Windows and you have non-English document names, the unzip process may not be able to read the file names correctly. You can also try using Zipeg instead. Related articles Auto-backup create multiple files in Google Drive. How to use auto-backup to automatically create a copy of your documents in the cloud GoodNotes 5 (5.0.4) crashes after adding an image to the page & imported PDF files show blank Upload Failed error message Some files are missing in the auto-backup folder.