Files with .ngc extension are Xilinx Generated Netlist Format. The Xilinx company defined this format standard. These files may be used by Windows programs. NGC files belong to the CAD Files category with 158 other extensions. Popular software supporting NGC is ISE Design Suite by Xilinx. More NGC and ISE Design Suite details are on Xilinx’s website.
NGC files are generated netlists synthesized from HDL designs. Example HDLs are Verilog (.v) and VHDL (.vhd). Open 400+ formats with File Viewer Plus.
NGC files store generated data from the obsolete Xilinx Integrated Software Environment. This file type is likely obsolete and no longer actively used.
Double-click NGC files to open them if an appropriate program is associated. Install ISE Design Suite to open these files if needed.
NGC file elements represent transforms on elements in Xilinx software. NGC contents relate to other formats: .edf, .xnf, .vhd. These formats relate to digital design and gate level netlists.
If NGC files don’t open correctly, they likely aren’t associated with the right program. Follow these steps: Double-click the NGC file, install ISE Design Suite if needed, then try again.
Xilinx ISE