Because Windows does not natively support 7z files as it does for ZIP files, you will need a third-party tool to see what's inside.
While the specific "shawlevent" name is less common than generic system files, it frequently appears in contexts similar to the following: shawlevent.7z
Small-scale developers sometimes use these archives to distribute event-driven scripts or software patches. How to Open and Inspect It Because Windows does not natively support 7z files
This blog post examines the file, a compressed archive format typically used for software updates or event-specific data delivery. Unpacking the Mystery: A Look at "shawlevent.7z" shawlevent.7z