The .rar extension indicates a compressed archive, similar to a .zip file. Based on community discussions and technical logs, "pack 1118" typically refers to one of the following:
The original software for this format; it offers a free trial version. Final Verdict
Use a tool like VirusTotal to upload the file (or the download link) and check it against dozens of antivirus engines.
Do you have a or know what specific software it's supposed to be for? Knowing the context would help me tailor the post to a specific audience!
Since this is a RAR file, Windows and macOS might not open it natively without a third-party tool. The most common (and free) options include: