How to FIND QSF file for 5SGXEA7K2F40C2N?

--- Quote Start ---

Thank you for your reply. I am a beginner and trying to use this board and Quartus software. Can you tell me how I can write command for specific board ? If there is link to learn it, and you can provide me I will appreciate your help.

Thank you .

--- Quote End ---

So is this the board you have: https://www.altera.com/products/boards_and_kits/dev-kits/altera/kit-sv-gx-host.html

If so, there are a number of documentation and sample file downloads listed there. I would suggest looking at a sample design as a starting point.