: The ".001" indicates this is part one. There are likely subsequent files named ".002", ".003", and so on.
: If you did not download this file intentionally, exercise caution. Compressed archives are often used to deliver large software packages, but they can also hide malware. GnAforst.7z.001
: You will need a utility like 7-Zip (Windows), Keka (Mac), or PeaZip to join and extract the files. Safety and Identification : The "