| Extension | File Description |
| .KK1 | Uncommon Files |
| .KK2 | Uncommon Files |
| .KK3 | Uncommon Files |
| .KK4 | Uncommon Files |
| .KK5 | Uncommon Files |
| .KK6 | Uncommon Files |
| .KK7 | Uncommon Files |
| .KK8 | Uncommon Files |
| .KK9 | Uncommon Files |
| .KKA | Uncommon Files |
| .KKB | Uncommon Files |
| .KKC | Uncommon Files |
| .KKD | Uncommon Files |
| .KKE | Uncommon Files |
| .KKF | Uncommon Files |
| .KKG | Uncommon Files |
| .KKH | Uncommon Files |
| .KKI | Uncommon Files |
| .KKJ | Uncommon Files |
| .KKK | Uncommon Files |
| .KKL | Uncommon Files |
| .KKM | Uncommon Files |
| .KKN | Uncommon Files |
| .KKO | Uncommon Files |
| .KKP | Uncommon Files |
| .KKQ | Uncommon Files |
| .KKR | Uncommon Files |
| .KKS | Uncommon Files |
| .KKT | Uncommon Files |
| .KKU | Uncommon Files |
| .KKV | Uncommon Files |
| .KKW | Uncommon Files |
| .KKX | Uncommon Files |
| .KKY | Uncommon Files |
| .KKZ | Uncommon Files |
| .KL | Uncommon Files |
| .KL0 | Uncommon Files |
| .KL1 | Uncommon Files |
| .KL2 | Uncommon Files |
| .KL3 | Uncommon Files |
| .KL4 | Uncommon Files |
| .KL5 | Uncommon Files |
| .KL6 | Uncommon Files |
| .KL7 | Uncommon Files |
| .KL8 | Uncommon Files |
| .KL9 | Uncommon Files |
| .KLA | Uncommon Files |
| .KLB | Uncommon Files |
| .KLC | Uncommon Files |
| .KLD | Uncommon Files |
| .KLE | Uncommon Files |
| .KLF | Uncommon Files |
| .KLG | Uncommon Files |
| .KLH | Uncommon Files |
| .KLI | Uncommon Files |
| .KLIP | Uncommon Files |
| .KLJ | Uncommon Files |
| .KLK | Uncommon Files |
| .KLL | Uncommon Files |
| .KLM | Uncommon Files |
| .KLN | Uncommon Files |
| .KLO | Uncommon Files |
| .KLP | Uncommon Files |
| .KLQ | Uncommon Files |
| .KLR | Uncommon Files |
| .KLS | Uncommon Files |
| .KLT | Uncommon Files |
| .KLU | Uncommon Files |
| .KLV | Uncommon Files |
| .KLW | Uncommon Files |
| .KLX | Uncommon Files |
| .KLY | Uncommon Files |
| .KLZ | Uncommon Files |
| .KM | Uncommon Files |
| .KM0 | Uncommon Files |
| Extension | File Description |
| .KM1 | Uncommon Files |
| .KM2 | Uncommon Files |
| .KM3 | Uncommon Files |
| .KM4 | Uncommon Files |
| .KM5 | Uncommon Files |
| .KM6 | Uncommon Files |
| .KM7 | Uncommon Files |
| .KM8 | Uncommon Files |
| .KM9 | Uncommon Files |
| .KMA | Uncommon Files |
| .kmap | Uncommon Files |
| .KMB | Uncommon Files |
| .KMC | 3D Image Files |
| .KMD | Uncommon Files |
| .KMDR | Uncommon Files |
| .KME | Uncommon Files |
| .KMF | Uncommon Files |
| .KMG | Uncommon Files |
| .KMH | Uncommon Files |
| .KMI | Uncommon Files |
| .KMJ | Uncommon Files |
| .KMK | Uncommon Files |
| .KML | GIS Files |
| .KMM | Uncommon Files |
| .KMN | Uncommon Files |
| .KMO | Uncommon Files |
| .KMP | Audio Files |
| .KMQ | Uncommon Files |
| .KMR | Uncommon Files |
| .KMS | Uncommon Files |
| .KMT | Uncommon Files |
| .KMU | Uncommon Files |
| .KMV | Uncommon Files |
| .KMW | Uncommon Files |
| .KMX | Uncommon Files |
| .KMY | Data Files |
| .KMZ | GIS Files |
| .KM_ | Uncommon Files |
| .KN0 | Uncommon Files |
| .KN1 | Uncommon Files |
| .KN2 | Uncommon Files |
| .KN3 | Uncommon Files |
| .KN4 | Uncommon Files |
| .KN5 | Uncommon Files |
| .KN6 | Uncommon Files |
| .KN7 | Uncommon Files |
| .KN8 | Uncommon Files |
| .KN9 | Uncommon Files |
| .KNA | Uncommon Files |
| .KNB | Uncommon Files |
| .KNC | Uncommon Files |
| .KND | Uncommon Files |
| .KNE | Encoded Files |
| .KNF | Uncommon Files |
| .KNG | Uncommon Files |
| .KNH | Uncommon Files |
| .KNI | Uncommon Files |
| .KNJ | Uncommon Files |
| .KNK | Uncommon Files |
| .KNL | Uncommon Files |
| .KNM | Uncommon Files |
| .KNN | Uncommon Files |
| .KNO | Data Files |
| .KNOW | Uncommon Files |
| .KNP | Data Files |
| .KNQ | Uncommon Files |
| .KNR | Uncommon Files |
| .KNS | Uncommon Files |
| .KNT | Text Files |
| .KNU | Uncommon Files |
| .KNV | Uncommon Files |
| .KNW | Uncommon Files |
| .KNX | Uncommon Files |
| .KNY | Uncommon Files |
| .KNZ | Uncommon Files |
