| nll | newlook Batch Script |
| nlm | Novell NetWare Loadable Module |
| nlo | Lotus Notes Linked Object |
| nlogo | NetLogo Model |
| nlogo3d | NetLogo 3D Model |
| nlp | NirLauncher Package |
| nlpe | Navicat for SQLite Exported Table |
| nlpev | Navicat for SQLite Export View Result Profile |
| nlpj | Navicat for SQLite Batch Job |
| nlpt | Navicat for SQLite Data Transfer Profile |
| nlr | NLREG Nonlinear Regression Control Data |
| nls | National Language Support |
| nlt | Oracle Locale Builder Text File |
| nlu | Norton LiveUpdate E-mail Trigger Data |
| nlv | Nikon Capture LHC Editor File |
| nlx | MyDraw XML Library |
| nly | CBS CheckWriter NonCalc Layout |
| nm | RM Number Magic Document |
| Space Engine Nebula Model Data |
| nm2 | Navitel v3 Map |
| nm3 | DNMR3 Input Data |
| Navitel v5 Map |
| nm7 | Navitel Navigator v7 Map |
| nmat | NeoEngine Material Data |
| nmb | Samba NetBIOS Name Server Log |
| nmbd | Samba NetBIOS Name Server Log |
| nmdar | Connectivity Memory Model NMDA Input Data |
| nmdb | NoiseMap Database |
| nmf | Lightwave 3D Normal Map |
| nmi | SwordSearcher Data |
| nmig | Noah System 3 Database |
| nmig2 | Noah System 3 Database |
| nml | NEURO ONE Static Neuron Model |
| News Markup Language Data |
| nmm | Nightmare Module |
| nmmm | Samsung Note Data |
| nmo | 3DVIA Virtools Behavioral Object |
| nmp | Nikon E-Max Data |
| nmpd | Navicat for MariaDB Data Synchronization Data |
| nmpj | Navicat for MariaDB batch job |
| nmps | Navicat for MariaDB Structure Synchronization Data |
| nmpt | Navicat for MariaDB Transfer Data |
| nmr | NUTS NMR Data |
| nms | 3DVIA Virtools Graphical Script |
| nmsv | Ableton Live Massive Plugin Preset |
| nmu | Debian Non-maintainer Upload |
| EMC Documentum Client Library Query Cache |
| Silvaco TCAD Simulation Standard Data |
| nmx | NI Traktor Mix Data |
| nna | NeuralWare NeuralWorks Data |
| nnb | ANNI Neural Network Batch |
| nnd | CYMFLOW Network Data |
| nnes | Nostalgia.NES Saved Game |
| nnf | Cytoscape Nested Network Format File |
| nni | ANNI Neural Network Investing |
| nnl | Network Notepad Professional License |
| nnn | Filmetrics F20 Material Data |
| nnp | ANNI Neural Network Portfolio |
| nnr | NeuralWare NeuralWorks Data |
| nns | NobleNet Sealer File |
| nnt | Eudora Addressbook Database |
| nntp | NewsWatcher NNTP Data |
| nnvs | NextNine VNC Player Session Data |
| nnw | NeuralWare NeuralWorks Data |
| NobleNet Web Data |
| nob | Chart Navigator Pro Navigation Objects Data |
| nod | MSC Patran Nodal Results |
| nodes | PowerFolder Nodes Data |
| nog | BLAST NOG Data |
| nom | PC-DMIS NOM File |
| noname | Google Photos Empty File |
| nop | Nikon Optional Picture Control |
| nopd | Navicat for Oracle Data Synchronization Profile Data |
| nope | Navicat for Oracle Exported Table |
| nopem | Navicat for Oracle Export Materialized View Profile |
| nopeq | Navicat for Oracle Export Query Result Profile Data |
| nopev | Navicat for Oracle Export View Result Profile Data |
| nopi | Navicat for Oracle Import Wizard Profile Data |
| nopj | Navicat for Oracle Batch Job |
| nops | Navicat for Oracle Structure Synchronization Data |
