There may be several clues within the file. A face file is a list of input values for morphs. If it's for a current DAZ figure, you'll see a lot of references to morphs named like this: targetGeom PBMDC_01 Find something a little more distinctive, such as "AsianHead", and use something like the Windows Find utility to look for .cr2 files which contain that string. Isn't there some provision for comment lines in the file format?