The file 646F776E6C6F61646D6F6465747332.7z appears to be a compressed archive. The filename is a hexadecimal string that translates to "downloadmodets2," suggesting it may contain mods for .
To access the contents of a .7z file, you need a specialized utility like 7-Zip or WinZip . How to Download and Extract the File Download File 646F776E6C6F61646D6F6465747332.7z