Assignment & Configuration File (.acf) Definition
An ASCII text file (with the extension .acf) that stores information about MAX+PLUS II assignments, as well as configuration settings for the Compiler, Simulator, and Timing Analyzer for an entire MAX+PLUS II project.
The ACF stores information entered with menu commands in all MAX+PLUS II applications, as well as pin, location, and chip assignments entered in the MAX+PLUS II Floorplan Editor window.
Note: You can import assignments from a MAX+PLUS II Assignment & Configuration File into
the Quartus® Prime software with the Import Assignments command, but
when you save the project, the Quartus® Prime software will save the file as a Quartus® Prime
Settings File (.qsf).