: You can attempt to open it using the 7-Zip official utility or WinZip .
: The .7z extension indicates it was created using 7-Zip , an open-source file archiver known for high compression ratios and strong AES-256 encryption. QUFSEGUVDR.7z
: If you didn't create the file, check the "Date Modified" in your file explorer. This can help you trace back to what you were downloading or installing at that time. : You can attempt to open it using
