Look at the text inside. You will likely see timestamps, file paths, or scan results.
If you dislike seeing "clutter" in your root directory, consider these two tips: avscanner.ini in c drive
Are you seeing any related to this file, or did you just happen to spot it while browsing your folders? Look at the text inside
avscanner.ini is a harmless configuration file left behind by a security scan. It’s safe to ignore and even safer to delete. avscanner.ini in c drive