Mac-Windows, Can't they get along?

From a Mac (OS 9.2) and Ilustrator (9) with CADTools plug-in (2.1),
I've sent a number of variously-formatted export files to three
Windows machines, without success. None of the file export formats
(AutoCad DXF, BMP, EPS, TIFF, etc.) I've sent could be opend at the
other end: Windows 95 w/ CorelDraw; Windows 98 w/ CASmate (sp.); and
Windows ?? with AutoCad. . . .

I'm exporting line art to a Windows-driven engraving machine. Sure
could use some help. My project is dead in the water, don't want it to
slip under the waves.

Thanks much,

Brian Chapma