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Format

Back Up File

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Summary

Name
Back Up File
Identifiers
PUID: fmt/941
Description
Many applications produce back up files that have the .bak extension. Some of these will be identifiable through their binary signature, however others may not. An identification based upon this PRONOM entry will be by extension only and therefore will likely require further investigation to determine the specific type of file.
File extensions
bak
Source
Digital Preservation Department / The National Archives

Changelog

  • Added in V86

    Release date
    27 July 2016

    Back Up File: Full entry added. Added as a response to a query from The Borthwick Institute for Archives.