.NOV File

The nov file extension is related to NI Battery, a professional drum sampler from Native Instruments.

The nov file is some sort of cache file created when a sample is loaded to the library to speed up the loading the next time you access them. These files can be freely deleted.

How to open:

In vast majority of cases, users cannot access temporary saved data.

How to convert:

Temporary files are usually not meant to be converted to anything else.