KeyCAD

KeyCAD Complete & KeyCAD Pro was inexpensive CAD/Modeling software produced by Softkey for Macintosh and Windows. Earlier DOS version may have had KCF extension. Later versions produced by the Learning Company who bought Softkey.

File Information
Macintosh files have similar format to Windows versions.
 * KEY are drawing files.
 * SYM are symbol files.

Format Information
KEY & SYM files have the hex values for the first 4 bytes.

Software

 * KeyCAD Complete for Macintosh
 * KeyCAD Complete for Windows
 * KeyCAD Pro for Windows