The .rar extension means the file is a compressed archive. You will need a utility like 7-Zip or WinRAR to open it. Content & Safety Context

Because these games are often distributed outside official stores, proceed with caution. Always run a virus scan before executing any .exe files found inside the archive. Are you having trouble extracting the file , or

UWV2YW31 appears to be a unique internal code or short-hash used by the site's content delivery system to track specific game versions or individual uploads.

The prefix otomi-games.com indicates the file originated from their servers.

While the site claims all files are "100% safe", it is common for game "cracks" or unofficial distributions to trigger false positives in antivirus software.