Because .rar is a proprietary format, your computer cannot open it natively without third-party tools.
Use the official WinRAR or free alternatives like 7-Zip and PeaZip . wch.rar
Setup files for the CH340, CH341, or CH343 series. Because
Once extracted, look for an INSTALL.exe or SETUP.exe . For drivers, you often need to run these with Administrator privileges to allow the system to recognize the connected hardware. Because .rar is a proprietary format