Details: File format summary

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Properties

Summary
Name	Back Up File
Version
Other names
Identifiers	PUID: fmt/941
Family
Classification
Disclosure
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.
Orientation
Byte order
Related file formats	None.
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	Digital Preservation Department / The National Archives
Source date	14 Jul 2016
Source description
Last updated	14 Jul 2016
Note