Even if this specific file is safe, encountering strange files in your AppData or Downloads can be a sign of unrelated malware, such as Win64:Efiguard . If you are concerned about your system's health, experts at Bleeping Computer recommend: Running a scan with Malwarebytes to rule out hijackers.
To access the contents of a 7z file, you would typically use the 7-Zip software. The process involves: d4ac4633ebd6440fa397b84f1bc94a3c.7z
If the presence of this "pesky" file bothers you, users on Reddit's techsupport have developed a "dummy file" workaround to block it: Even if this specific file is safe, encountering