Cardfile (sometimes spelled CardFile or Card File) is an address book application, with a native .crd file format. It was included with Microsoft Windows 1.0 through Windows Me and Windows NT 4. It has apparently been used as a clip art format.
Reportedly, the Cardfile source code was included in some Windows SDKs.
There are two .crd file formats, which can be named after their signatures: "MGC" format, and the somewhat more advanced "RRG" format.
Files begin with ASCII characters "
MGC" or "
- The Cardwin Project
- Freeware 64 bit and 32 bit CardFile replacement
- Deark can extract images and text (MGC format only)
- WINDOART.ZIP [Ed. note: Somebody confused CRD format with CDR format.]