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.v01 file extension

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NT backup catalogue file. The .v01 file is a catalogue file, which represents the catalogue for a single backup.

The .v01 file may be:

  • a simple placeholder for the backup - storing information about the backup but excluding information about the contents of that backup. In this instance the full catalogue must be read from the backup prior to restore.
  • or it may be a full catalogue storing details of the files that have been backed up in a particular backup. In the latter case the file includes details of the files together with the directory structure.

The file is binary encoded, and can only be opened using Windows Backup (ntbackup).

For more information see:

Can you add to this? Do you know of any applications not already listed which will work with .v01 files, view .v01 files or open .v01 files? Are you able to contribute any additional reference information or file format information about .v01 files or have you spotted any errors or omissions? If so please let us know by emailing us at feedback@cryer.co.uk - Thank you.