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, Intel® FPGA IP 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).