Symbol File (.sym) Definition

A graphic file (with the extension .sym) created by the MAX+PLUS II Symbol Editor or the Compiler Netlist Extractor module of the MAX+PLUS II Compiler. This file represents a design file (that is, megafunction or macrofunction) or primitive with the same name and can be used in Graphic Design Files (.gdf).

You can read and edit Symbol Files in the Quartus^® Prime Symbol Editor; however, the Quartus^® Prime software saves them as Block Symbol Files (.bsf).