| ndl | Nick-O-Matic Design Factory NDL Data |
| ndm | Navicat for MySQL DataModels Data |
| ndots | Ribbons Polygon Definition |
| ndp | NET Deed Plotter File |
| ndpa | Hamamatsu NanoZoomer Annotation Data |
| ndpr | Hamamatsu NanoZoomer Digital Pathology Image Format Data |
| ndpvs | Hamamatsu NanoZoomer Script |
| ndr | Nikon Capture Image Dust Off File |
| Nintendo 64DD Emulator ROM Saved Data |
| Rave Reports Report Data |
| nds | Nero Burning ROM DiscSpan Compilation |
| Nick-O-Matic Design Factory NDS Data |
| Nintendo DS ROM Image |
| ndt | NEPLAN External Program Data |
| Niton Data Transfer File |
| ndu | SymbianOS Backup Data |
| ndv | ENVI N-D Visualizer State Data |
| Nanodrop Spectrophotometer Report |
| SmartWare Network Driver |
| ndx | ArcView Fonts Index Data |
| Aston-Tate dBASE Database Index |
| Concordance Numeric Data and Text Fields Data |
| EPM Keyword Index |
| Neat 5 Exported Archive |
| nearest | PLINK Nearest Neighbor Distance Report Data |
| neb | Nord Electro 3 Factory Backup |
| nec | NEC Antenna Data |
| ned | Navicat for MySQL ER Diagram Data |
| nef | Nero BackItUp Encryption File |
| negpos | ColorNeg Film Description |
| nei | LonWorks Neuron EPROM Image File |
| nen | Nick-O-Matic Design Factory Data |
| neon | NEON Encoded Data |
| nepg | Nord Electro 3 Program |
| neroserial | Nero Multimedia Suite License Key |
| neroserial11 | Nero Multimedia Suite License Key |
| neroserial12 | Nero Multimedia Suite License Key |
| nes | NES ROM Image |
| Nessus Script |
| nessus | Nessus Network Security Scanner |
| net | Cadence OrCAD Netlist Output Data |
| CIRCAD Netlist Data |
| Dynagen Network Topology Data |
| EPANET Data |
| FileMaker Pro Networking Module |
| KiCad Netlist Data |
| PTV VISUM Network Data |
| SNNS Network Definition Data |
| neta | Netica Binary Data |
| netspm | NetSpot Map |
| neu | Altair FEKO Femap Geometrical Data |
| GAMBIT NEU Data |
| nev | NeuraLynx Event Information Data |
| newsloc | Mac OS X Finder News Location Data |
| nex | NeuroExplorer Data |
| NEXUS Data File |
| nf | The Bro NetFlow Data |
| nf2 | NeverForget v2 Data |
| nfa | Netflix for Android Data |
| nfb | Nokia Phone Backup |
| nfc | Nokia Phone Backup |
| 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 |
| NewsBin Pro Configuration |
| nfi | Netflix Downloaded Information |
| nfl | Autodesk AutoCAD Multiline Filter Data |
| 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 | NeoGeo Pocket Color ROM Image |
| Xilinx Platform Studio Generated Netlist |
| ngd | NimbleGen Gene Description Data |
| Xilinx ISE Native Generic Database |
