Use the File Format by Family table to see which file formats apply to each type of constraint and each device family. Click the name of a file format type in the table for more information about it.
SDC - Synopsys Design Constraints
PDC - Physical Design Constraints for ProASIC3E, ProASIC3, and Axcelerator
GCF - Design Constraints Format for ProASICPLUS and ProASIC
DCF - Actel Design Constraints Format
PIN - Pin location constraints