Collective Bargaining Agreement - Ohio Public Sector - Ohio.gov
If this file was attached to a specific tutorial or modding community (like those for the S.T.A.L.K.E.R. 2 or Silent Hill 2 fan communities), search that specific community's forum for user feedback.
Depending on the context you are looking for, it typically functions as:
Unknown .7z files from the web are frequently used to distribute malware, "cracked" software, or unwanted scripts.
If you have downloaded a file named from an unofficial or third-party website (such as a forum or file-sharing service) and are looking for a review to verify its safety: