Format
Cardfile
Summary
- Name
- Cardfile
- Identifiers
- PUID: fmt/1254
- Format type
- Database
- Description
- Cardfile (also Card File or CardFile) is a personal information manager, based on index cards. It was initially released with Windows 1.0.
- Note
- https://web.archive.org/web/20130605083355/http://support.microsoft.com/kb/99340# https://en.wikipedia.org/wiki/Cardfile https://wikivisually.com/wiki/Cardfile
- File extensions
-
crd - Source
- National Library of Australia / National Library of Australia
- Developed by
- Microsoft Corporation
- Supported by
- Microsoft Corporation
Internal signatures
Cardfile (MGC)
- Note
- BOF: Magic bytes ‘MGC’, ‘RRG’ or 'DKO' at beginning of file. The initial versions of Cardfile have the magic bytes 'MCG'. When Cardfile updated to add OLE support the file signature changed to 'RRG'. Finally the file signature changed to 'DKO' when released as a 32-bit accessory and the character width changed in order to support unicode.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 2
- Byte Sequence
4D4743- Endianness
- None
Cardfile (RRG)
- Note
- Cardfile updated to add OLE support and the magic bytes changed to 'RRG' at the beginning of the file.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 2
- Byte Sequence
525247- Endianness
- None
Cardfile (DKO)
- Note
- The magic bytes changed to 'DKO' at the beginning of the file when released as a 32-bit accessory.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 2
- Byte Sequence
444B4F- Endianness
- None
Changelog
-
Updated in V100
- Release date
- 16 December 2021
Cardfile: Corrected transposition of two characters in Magic Byte sequence in description field.
-
Added in V96
- Release date
- 21 January 2020
Cardfile: Signature developed and samples provided by National Library of Australia
Cardfile: Full entry added. Submitted by National Library of Australia.