To get a more specific answer, it helps to check the following:
Use a tool like 7-Zip to "Open Archive" rather than "Extract." This allows you to see the file names inside without actually executing anything. R0558.7z
Before opening, run it through VirusTotal to check it against multiple antivirus engines. To get a more specific answer, it helps
Look at where the file was saved. If it's in a temp folder (e.g., AppData/Local/Temp ), it may have been left behind by a software installer. How to Investigate Further To get a more specific answer