This is a compressed archive format. Files are often packed this way to reduce download size or bundle multiple drivers together. How to Extract and Install
To use the contents of a ".rar" file, you must first "unrar" or extract them. Windows: You can use WinRAR or 7-Zip .
If you are looking for information on downloading or extracting a file—likely related to a driver or utility for an M.2 (Key E) hardware component— Understanding the Terms
Right-click the downloaded file and select "Extract Here" or "Extract to [Folder Name]" .
This typically refers to a specific type of expansion slot on motherboards used primarily for wireless communication modules , such as Wi-Fi and Bluetooth cards.