Is room_v3.dat virus?
upload to www.virustotal.com and post the link to the results here.
Looks like a clean file.Why do you think its a virus?
Search on google they it’s virus. Just try to make sure BTW it’s located on %appdata%
I checked the first 2 pages on Google and there is not a single link there that says it is malware.
If you want a check for your system, follow these instructions > https://forum.avast.com/index.php?topic=194892.0