If any kind of mls to afc conversion is possible, it would export of Miles Sound Tools sound files (.mls) to a compressed variant of AIFF files (.afc), probably as a case of audio sample conversion or export. We have not found any particular mentions about this conversion, but both formats are supported in Awave Studio and similar audio editors, so these are most likely your best option how to approach this.
Updated: July 20, 2023