| nf | The Bro NetFlow Data |
| nf2 | NeverForget v2 Data |
| nfa | Netflix for Android Data |
| nfb | Nokia Phone Backup |
| nfc | Nokia Phone Backup |
| nfc | Nokia Phone Backup Copy |
| nfd | Altair FEKO Near Field Data Input |
| nfd_data | Nero Multimedia Suite Data |
| nfe | Nikon Capture Fisheye Lens Data |
| nfg | Gambit Strategic Game Format File |
| nfl | Autodesk AutoCAD Multiline Filter Data |
| nfl | MasterCook Layout Data |
| nfn | NoteFly Note Data |
| nfr | CONTAM Node Flow Results Data |
| nfslicense | netfabb Basic License Key |
| nfy | IBM DB2 Administration Notification Log |
| nfz | JB BAHN Vehicle Data |
| nga | ngPlant Model Archive |
| ngc | Xilinx Platform Studio Generated Netlist |
| ngd | NimbleGen Gene Description Data |
| ngd | Xilinx ISE Native Generic Database |
| nge | neXus Personal Security Client Data |
| ngf | NetSight Generated Format Data |
| ngm | Xilinx ISE Map Intermediate Data |
| ngo | Nick-O-Matic Design Factory Data |
| ngo | numberGo Dynamic Report |
| ngp | NeoGeo Pocket ROM Image |
| ngp | ngPlant Model Data |
| ngrr | Guitar Rig User Presets |
| ngs | Horiba LabSpec NGS Data |
