| Extension | File Description |
| .NIN | Uncommon Files |
| .nindex | Uncommon Files |
| .NIO | Uncommon Files |
| .NIP | Uncommon Files |
| .NIQ | Uncommon Files |
| .NIR | Uncommon Files |
| .NIRVANA | Uncommon Files |
| .NIS | Uncommon Files |
| .NIT | Uncommon Files |
| .NIU | Uncommon Files |
| .NIV | Uncommon Files |
| .NIW | Uncommon Files |
| .NIX | Uncommon Files |
| .NIY | Uncommon Files |
| .NIZ | Uncommon Files |
| .NJ0 | Uncommon Files |
| .NJ1 | Uncommon Files |
| .NJ2 | Uncommon Files |
| .NJ3 | Uncommon Files |
| .NJ4 | Uncommon Files |
| .NJ5 | Uncommon Files |
| .NJ6 | Uncommon Files |
| .NJ7 | Uncommon Files |
| .NJ8 | Uncommon Files |
| .NJ9 | Uncommon Files |
| .NJA | Uncommon Files |
| .NJC | Uncommon Files |
| .NJD | Uncommon Files |
| .NJE | Uncommon Files |
| .NJF | Uncommon Files |
| .NJG | Uncommon Files |
| .NJH | Uncommon Files |
| .NJI | Uncommon Files |
| .NJJ | Uncommon Files |
| .NJK | Uncommon Files |
| .NJL | Uncommon Files |
| .NJM | Uncommon Files |
| .NJN | Uncommon Files |
| .NJO | Uncommon Files |
| .NJP | Uncommon Files |
| .NJQ | Uncommon Files |
| .NJR | Uncommon Files |
| .NJS | Uncommon Files |
| .NJT | Uncommon Files |
| .NJU | Uncommon Files |
| .NJV | Uncommon Files |
| .NJW | Uncommon Files |
| .NJX | Uncommon Files |
| .NJY | Uncommon Files |
| .NJZ | Uncommon Files |
| .NK0 | Uncommon Files |
| .NK1 | Uncommon Files |
| .NK3 | Uncommon Files |
| .NK4 | Uncommon Files |
| .NK5 | Uncommon Files |
| .NK6 | Uncommon Files |
| .NK7 | Uncommon Files |
| .NK8 | Uncommon Files |
| .NK9 | Uncommon Files |
| .NKA | Uncommon Files |
| .NKB | Uncommon Files |
| .NKD | Uncommon Files |
| .NKE | Uncommon Files |
| .NKF | Uncommon Files |
| .NKG | Uncommon Files |
| .NKH | Uncommon Files |
| .NKJ | Uncommon Files |
| .NKJV | Uncommon Files |
| .NKK | Uncommon Files |
| .NKL | Uncommon Files |
| .NKN | Uncommon Files |
| .NKO | Uncommon Files |
| .NKP | Uncommon Files |
| .NKQ | Uncommon Files |
| .NKR | Uncommon Files |
| Extension | File Description |
| .NKT | Uncommon Files |
| .NKU | Uncommon Files |
| .NKV | Uncommon Files |
| .NKW | Uncommon Files |
| .NKX | Uncommon Files |
| .NKY | Uncommon Files |
| .NKZ | Uncommon Files |
| .NL | Uncommon Files |
| .NL0 | Uncommon Files |
| .NL1 | Uncommon Files |
| .NL2 | Uncommon Files |
| .NL3 | Uncommon Files |
| .NL4 | Uncommon Files |
| .NL5 | Uncommon Files |
| .NL6 | Uncommon Files |
| .NL7 | Uncommon Files |
| .NL8 | Uncommon Files |
| .NL9 | Uncommon Files |
| .NLA | Uncommon Files |
| .NLB | Uncommon Files |
| .NLC | Uncommon Files |
| .NLD | Uncommon Files |
| .NLE | Uncommon Files |
| .NLF | Uncommon Files |
| .NLG | Uncommon Files |
| .NLH | Uncommon Files |
| .NLI | Uncommon Files |
| .NLIST | Uncommon Files |
| .NLJ | Uncommon Files |
| .NLK | Uncommon Files |
| .NLL | Uncommon Files |
| .NLM | Uncommon Files |
| .NLN | Uncommon Files |
| .NLO | Uncommon Files |
| .NLP | Uncommon Files |
| .NLQ | Uncommon Files |
| .NLR | Uncommon Files |
| .NLT | Uncommon Files |
| .NLU | Uncommon Files |
| .NLV | Uncommon Files |
| .NLW | Uncommon Files |
| .NLX | Uncommon Files |
| .NLY | Uncommon Files |
| .NLZ | Uncommon Files |
| .NM | Uncommon Files |
| .NM0 | Uncommon Files |
| .NM1 | Uncommon Files |
| .NM2 | Uncommon Files |
| .NM3 | Uncommon Files |
| .NM4 | Uncommon Files |
| .NM5 | Uncommon Files |
| .NM6 | Uncommon Files |
| .NM7 | Uncommon Files |
| .NM8 | Uncommon Files |
| .NM9 | Uncommon Files |
| .NMA | Uncommon Files |
| .NMAT | Uncommon Files |
| .NMB | Uncommon Files |
| .NMC | Uncommon Files |
| .NMD | Uncommon Files |
| .NMDAR | Uncommon Files |
| .NME | Uncommon Files |
| .NMEA | Uncommon Files |
| .NMG | Uncommon Files |
| .NMH | Uncommon Files |
| .NMI | Uncommon Files |
| .NMJ | Uncommon Files |
| .NMK | Uncommon Files |
| .NML | Uncommon Files |
| .NMM | Uncommon Files |
| .NMN | Uncommon Files |
| .NMO | Uncommon Files |
| .NMP | Uncommon Files |
| .NMQ | Uncommon Files |
| .NMR | Uncommon Files |
