For macOS 10.12 and later. This script will rename the selected tracks in iTunes with their filenames (minus the extension).
Obviously, files must be local. There is no accounting for track numbers that may prefix the filename.
To remove characters from the beginning of tag text try using the script Remove n Characters From Front or Back.
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Renumber order of selected tracks
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Paste non-ID3 Tag track and file-related info into Category, Comments, Description or Episode ID tag
downloaded 5m 23s ago
View/Edit tags of selected track(s) in single window
downloaded 5m 43s ago
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
downloaded 6m 3s ago
Copy number prefix in Song Name of selected tracks to their track number tag
downloaded 6m 18s ago
Append the track number of selected tracks to Song Name