Symptoms
- On a Mac, you create file-level backup of some folders.
- You download the archive to a Windows machine.
- You try to open the archive.
- Error appears:
Windows cannot open the folder.
The Compressed (zipped) Folder <path> is invalid.
Cause
Windows Explorer cannot extract a folder from the backup created on a Mac.
Solution
Use a third-party archiver (e.g. 7-Zip) to work with the archive.