There are 2 file types use the .NRT file extension:
1. Nokia Ringtone
Ringtone format used by Nokia cell phones; saves melodies as MIDI data, similar to a .MID file; can be converted to other more common formats using the Nokia Sound Converter included with Nokia PC Suite.
|Nokia Sound Converter|
Updated: July 6, 2007
2. Neat Contact File
Contact file created by NeatWorks, a digital document organizing system; contains an exported Neat contact file that can be shared between Neat users; replaced by the .NDX extension with the release of Neat 5.
To import a NRT file into Neat 5, select, navigate to your NRT file, and click .
NOTE: The NRT file is similar to .NRX and .NRF files, which are used by older versions of Neat.
Updated: July 30, 2016