| mps | Casio WK-3000 Music Presets |
| mspl | RPAS Configuration Data |
| msz | MADRIX 3 Compressed Setup |
| mtxcfg | MKVToolNix GUI Settings |
| mxu | MultiExchange Unit Configuration File |
| my | Yudit Settings |
| nacl | NameCleaner Internal Data |
| nam | Novell Netware Namespace Data |
| nanorc | GNU Nano Configuration |
| napr | NameCleaner Preferences Data |
| napt | Navicat Premium Data Transfer Profile |
| nca | Nikon Capture Color Adjustment |
| ncm | Nokia Configuration Message |
| ndc | IBM Personal Communications Connection Configuration |
| neop | Nord Electro 3 Organ Preset |
| nkp | Native Instruments Kontakt Presets |
| nlpb | Navicat for SQLite Backup Profile |
| nlpd | Navicat for SQLite Data Synchronization Profile |
| nlpeq | Navicat for SQLite Export Query Result Profile |
| nlpi | Navicat for SQLite Import Wizard Profile |
| nmdsdcid | Media Player Settings |
| nmpb | Navicat for MariaDB Backup Profile |
| nmpe | Navicat for MariaDB Export Wizard Profile |
| nmpeq | Navicat for MariaDB Export Query Result Profile |
| nmpev | Navicat for MariaDB Export View Result Profile |
| nmpi | Navicat for MariaDB Import Wizard Profile |
| nnm | HP OpenView Network Node Manager Configuration |
| nos | JNOS System Data |
| np4 | NetPoint 4 Schedule Data |
| npb | Navicat for MySQL Backup Profile |
| npe | Navicat for MySQL Export Wizard Profile |
| npe | Nvidia nTune Profile Settings |
| npeq | Navicat for MySQL Export Query Result Profile |
| npev | Navicat for MySQL Export View Result Profile |
| npfx | Norton Internet Security Firewall Settings |