That map doesn't appear to be for the 16-bit version, however, and it's not for either the MGC or RRG versions I've seen and decoded. The information I have on the 16-bit version comes from the Microsoft site, the only place I've found a full format map. Apparently this version was signed DOK.Īnd I've seen references to still another 8-bit format, but haven't been able to verify that. One of them, in a (hidden) version distributed with Windows XP uses 16-bit Unicode characters. Then there were at least two later formats:
The bitmapped images could be embedded (by dragging/dropping), OLE objects, or linked objects. I'm assuming most users of MS Cardfile didn't even know you could put images into the cards I didn't know until I started researching the format.
The one signed RRG has cards that can have both text and graphics. (That is, the MGC files I've seen have cards with only text in them.) The one signed MGC (first three bytes) seems to be a text-only format and is probably the earliest. I have seen two of the formats, and they are substantially different from one another.
(Some later Windows versions had it, but didn't install it automatically.) crd data file for Microsoft Cardfile that was originally distributed with, and automatically installed by Windows 3.1. There are at least three versions of the. Tip: Try to open the CRD file using a text-editor such as Notepad, as many file types contain simply contain unformatted plain-text and can viewed correctly using this method. Please check back soon for more information as we are constantly updating our file descriptions based on search frequency. We have yet to investigate this file type further, or there was not enough information available at the time to report accurately on the format. This data file format was added to our database by a visitor to this site, but no additional information was provided. If you are unable to open the file this way, it may be because you do not have the correct application associated with the extension to view or edit the CRD file.
The best way to open an CRD data file is to simply double-click it and let the default assoisated application open the file. If you are aware of any additional file formats that use the CRD extension, please let us know. CRD extension are known as Microsoft Windows 3.x Cardfiles, however other file types may also use this extension. Have you found, downloaded or received an CRD file, but don't know which software program is required to open it?īefore attempting to open an CRD file, you'll need to determine what kind of file you are dealing with and whether it is even possible to open or view the file format.Īnswer: Files which are given the.
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