SRAM Object File (.sof) Definition
A binary file (with the extension .sof), generated by the Compiler's Assembler module, or by the makeprogfile command-line utility. A SOF contains the data for configuring all SRAM-based Intel devices supported by the Intel® Quartus® Prime software, using the Programmer.
Note: Each successive
         release of the Intel® Quartus® Prime software typically includes:
   - Added support for new features in supported FPGA devices.
- Added support for new devices.
- Efficiency and performance improvements.
- Improvements to compilation time and resource use of the design software.