The National Archives
Search our website
  • Search our website
  • Search our records
   
 
Image of software box and CD PRONOM
Welcome (PRONOM home page) About PRONOM Add an entry
Search Help - opens in a new window Information resources - opens in a new window
 
 
 

*Details: File format summary

    
 

 

Search by keyword Search by file format Search by PUID Search by software Search by vendor Search by lifecycles Search by Migration Pathway

Details for:

Save as... XML | CSV Printer friendly version
 
Go to:  Summary  |  Documentation  |  Signatures |  Compression  |  Character encoding  |  Rights  |  Reference files   Properties  
 

Signatures
External signatures File extension: cgm
Internal signatures
Name Computer Graphics Metafile (Clear Text) Version 4 No.1
Description Element name begmf (Begin Metafile) with any letter in the element name in upper or lower case, followed by any number of bytes, followed by version (MFVERSION{1}4 or mfversion{1}4, or any upper/lower case combination). Trailer endmf{0-1}; (with any letter in the element name in upper or lower case) that can be followed by a comment
Byte sequences
Position type Absolute from BOF
Offset 0
Byte order  
Value 42(45|65)(47|67)(4D|6D)(46|66)*(4D|6D)(46|66)(56|76)(65|45)(52|72)(53|73)(49|69)(4F|6F)(4E|6E){1}34
Position type Absolute from EOF
Offset 0
Maximum Offset 2048
Byte order  
Value 45(4E|6E)(44|64)(4D|6D)(46|66){0-1}3B
Name Computer Graphics Metafile (Clear Text) Version 4 No.2
Description Element name begmf (Begin Metafile) with any letter in the element name in upper or lower case, followed by any number of bytes, followed by version (MFVERSION{1}4 or mfversion{1}4, or any upper/lower case combination). Trailer endmf{0-1}; (with any letter in the element name in upper or lower case) that can be followed by a comment
Byte sequences
Position type Absolute from BOF
Offset 0
Byte order  
Value 42(45|65)(47|67)(4D|6D)(46|66)*(4D|6D)(46|66)(56|76)(65|45)(52|72)(53|73)(49|69)(4F|6F)(4E|6E){1}34
Position type Absolute from EOF
Offset 0
Maximum Offset 2048
Byte order  
Value 65(4E|6E)(44|64)(4D|6D)(46|66){0-1}3B
Name Computer Graphics Metafile (Clear Text) Version 4 No.3
Description Element name begmf (Begin Metafile) with any letter in the element name in upper or lower case, followed by any number of bytes, followed by version (MFVERSION{1}4 or mfversion{1}4, or any upper/lower case combination). Trailer endmf{0-1}; (with any letter in the element name in upper or lower case) that can be followed by a comment
Byte sequences
Position type Absolute from BOF
Offset 0
Byte order  
Value 62(45|65)(47|67)(4D|6D)(46|66)*(4D|6D)(46|66)(56|76)(65|45)(52|72)(53|73)(49|69)(4F|6F)(4E|6E){1}34
Position type Absolute from EOF
Offset 0
Maximum Offset 2048
Byte order  
Value 45(4E|6E)(44|64)(4D|6D)(46|66){0-1}3B
Name Computer Graphics Metafile (Clear Text) Version 4 No.4
Description Element name begmf (Begin Metafile) with any letter in the element name in upper or lower case, followed by any number of bytes, followed by version (MFVERSION{1}4 or mfversion{1}4, or any upper/lower case combination). Trailer endmf{0-1}; (with any letter in the element name in upper or lower case) that can be followed by a comment
Byte sequences
Position type Absolute from BOF
Offset 0
Byte order  
Value 62(45|65)(47|67)(4D|6D)(46|66)*(4D|6D)(46|66)(56|76)(65|45)(52|72)(53|73)(49|69)(4F|6F)(4E|6E){1}34
Position type Absolute from EOF
Offset 0
Maximum Offset 2048
Byte order  
Value 65(4E|6E)(44|64)(4D|6D)(46|66){0-1}3B
Top of page Top of page
 
         
The National Archives Newsletter Icon

Send me The National Archives’ newsletter

A monthly round-up of news, blogs, offers and events.

Sign up
About our privacy policy