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*Details: File format summary



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Name Back Up File
Other names  
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.
Byte order  
Related file formats None.
Technical Environment  
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
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