Hi Reza

>I have a project with 70 reports. it is difficult to add these reports one by one to the project.
>Is any way to add these files in another way?

I don't know if you want to get it done interactively, then I would suggest you drag-drop the FRX files from Windows Explorer / My Computer / Search (Find) onto the project and they will automatically get added. In fact you can do this even with VCX files and other files too.

Hope it helps.