| Extension | File Description |
| .JC1 | Uncommon Files |
| .JC2 | Uncommon Files |
| .JC3 | Uncommon Files |
| .JC4 | Uncommon Files |
| .JC5 | Uncommon Files |
| .JC6 | Uncommon Files |
| .JC7 | Uncommon Files |
| .JC8 | Uncommon Files |
| .JC9 | Uncommon Files |
| .JCA | Uncommon Files |
| .JCAMP | Uncommon Files |
| .JCB | Uncommon Files |
| .JCC | Uncommon Files |
| .JCD | Uncommon Files |
| .JCE | Uncommon Files |
| .JCF | Uncommon Files |
| .JCG | Uncommon Files |
| .JCH | Uncommon Files |
| .JCI | Uncommon Files |
| .JCJ | Uncommon Files |
| .JCK | Uncommon Files |
| .JCL | Uncommon Files |
| .JCM | Uncommon Files |
| .JCN | Uncommon Files |
| .JCO | Uncommon Files |
| .JCP | Uncommon Files |
| .JCQ | Uncommon Files |
| .JCR | Uncommon Files |
| .JCS | Uncommon Files |
| .JCT | Uncommon Files |
| .JCU | Uncommon Files |
| .JCV | Uncommon Files |
| .JCW | Uncommon Files |
| .JCX | Uncommon Files |
| .JCY | Uncommon Files |
| .JCZ | Uncommon Files |
| .JD | Uncommon Files |
| .JD0 | Uncommon Files |
| .JD1 | Uncommon Files |
| .JD2 | Uncommon Files |
| .JD3 | Uncommon Files |
| .JD4 | Uncommon Files |
| .JD5 | Uncommon Files |
| .JD6 | Uncommon Files |
| .JD7 | Uncommon Files |
| .JD8 | Uncommon Files |
| .JD9 | Uncommon Files |
| .JDA | Uncommon Files |
| .JDB | Data Files |
| .JDBG | Uncommon Files |
| .JDC | Uncommon Files |
| .JDD | Uncommon Files |
| .JDE | Uncommon Files |
| .JDF | Settings Files |
| .JDG | Uncommon Files |
| .JDH | Uncommon Files |
| .JDI | Uncommon Files |
| .JDJ | Uncommon Files |
| .JDK | Uncommon Files |
| .JDL | Uncommon Files |
| .JDM | Uncommon Files |
| .JDN | Uncommon Files |
| .JDO | Uncommon Files |
| .JDP | Uncommon Files |
| .JDQ | Uncommon Files |
| .JDR | Uncommon Files |
| .JDS | Uncommon Files |
| .JDT | Uncommon Files |
| .JDU | Uncommon Files |
| .JDV | Uncommon Files |
| .JDW | Uncommon Files |
| .JDX | Uncommon Files |
| .JDY | Uncommon Files |
| .JDZ | Uncommon Files |
| .JE0 | Uncommon Files |
| Extension | File Description |
| .JE1 | Uncommon Files |
| .JE2 | Uncommon Files |
| .JE3 | Uncommon Files |
| .JE4 | Uncommon Files |
| .JE5 | Uncommon Files |
| .JE6 | Uncommon Files |
| .JE7 | Uncommon Files |
| .JE8 | Uncommon Files |
| .JE9 | Uncommon Files |
| .JEA | Uncommon Files |
| .JEB | Uncommon Files |
| .JEC | Uncommon Files |
| .JED | Developer Files |
| .JEE | Uncommon Files |
| .JEF | Data Files |
| .JEG | Uncommon Files |
| .JEH | Uncommon Files |
| .JEI | Uncommon Files |
| .JEJ | Uncommon Files |
| .JEK | Uncommon Files |
| .JEL | Uncommon Files |
| .JEM | Uncommon Files |
| .JEN | Uncommon Files |
| .JEO | Uncommon Files |
| .JEP | Uncommon Files |
| .JEQ | Uncommon Files |
| .JER | Uncommon Files |
| .JES | Uncommon Files |
| .JESD | Uncommon Files |
| .JET | Uncommon Files |
| .JEU | Uncommon Files |
| .JEV | Uncommon Files |
| .JEW | Uncommon Files |
| .JEX | Uncommon Files |
| .JEY | Uncommon Files |
| .JEZ | Uncommon Files |
| .JF0 | Uncommon Files |
| .JF1 | Uncommon Files |
| .JF2 | Uncommon Files |
| .JF3 | Uncommon Files |
| .JF4 | Uncommon Files |
| .JF5 | Uncommon Files |
| .JF6 | Uncommon Files |
| .JF7 | Uncommon Files |
| .JF8 | Uncommon Files |
| .JF9 | Uncommon Files |
| .JFA | Uncommon Files |
| .JFB | Uncommon Files |
| .JFC | Uncommon Files |
| .JFD | Uncommon Files |
| .JFE | Uncommon Files |
| .JFF | Uncommon Files |
| .JFG | Uncommon Files |
| .JFH | Uncommon Files |
| .JFI | Raster Image Files |
| .JFIF | Raster Image Files |
| .JFJ | Uncommon Files |
| .JFK | Uncommon Files |
| .JFL | Uncommon Files |
| .JFM | Uncommon Files |
| .JFN | Uncommon Files |
| .JFO | Uncommon Files |
| .JFP | Uncommon Files |
| .JFQ | Uncommon Files |
| .JFR | Uncommon Files |
| .JFS | Uncommon Files |
| .JFT | Uncommon Files |
| .JFU | Uncommon Files |
| .JFV | Uncommon Files |
| .JFW | Uncommon Files |
| .JFX | Uncommon Files |
| .JFY | Uncommon Files |
| .JFZ | Uncommon Files |
| .JG0 | Uncommon Files |
| .JG1 | Uncommon Files |
