A user has reported that Xilisoft expects STL files to be encoded using Windows ANSI. Unfortunately, at the moment InqScribe 2.0.5 does not export STL in that format. (By default, InqScribe exports using UTF-8.)

You can work around this by exporting a UTF-8 file from InqScribe, and then opening the file in Notepad and saving it with the correct text encoding.