WIF Specification
WeaveConvert (Windows) for Patternland 5 and Fiberworks 3
ptn2wif (Windows and source code) for WinWeave
QD WIF (Macintosh) for Macintosh ProWeave , WeaveMaker One, WeaveNet, and WeavePoint
WIFCNVT (Windows) for WeaveIt
Weaving File Exchange
Exchange Association of Northwestern Weavers Guilds
Maple Hill Software