There is only one file type that uses the .LOOV extension:
Smadav Virus Definitions File
Database of virus definitions used by Smadav (also "SmadAV"), an Indonesian antivirus program; contains a list of virus types and is referenced when scanning files for possible viruses.
NOTE: The main Smadav virus definitions is saved with the filename Smadav.loov. Updating this file automatically updates the program's virus database.
Updated: June 30, 2010