| Extension | File Description |
| .DSZ | Data Files |
| .DTA | Data Files |
| .DTD | Data Files |
| .DTR | Data Files |
| .DVDPROJ | Data Files |
| .DVO | Data Files |
| .DWI | Data Files |
| .DWZ | Data Files |
| .EAS | Data Files |
| .EBUILD | Data Files |
| .ECC | Data Files |
| .ECL | Data Files |
| .EDF | Data Files |
| .EDG | Data Files |
| .EEP | Data Files |
| .EFIF | Data Files |
| .EFP | Data Files |
| .EFX | Data Files |
| .EGP | Data Files |
| .EI6 | Data Files |
| .EMB | Data Files |
| .EMD | Data Files |
| .EMMA | Data Files |
| .ENEX | Data Files |
| .ENL | Data Files |
| .ENTITY | Data Files |
| .ENW | Data Files |
| .EPF | Data Files |
| .EPUB | Data Files |
| .EPW | Data Files |
| .ER1 | Data Files |
| .ES | Data Files |
| .ESB | Data Files |
| .ESP | Data Files |
| .ESX | Data Files |
| .ET | Data Files |
| .ET3 | Data Files |
| .ETD | Data Files |
| .EV | Data Files |
| .EVY | Data Files |
| .EWS | Data Files |
| .EXL | Data Files |
| .EXX | Data Files |
| .FA | Data Files |
| .FASTA | Data Files |
| .FBDOC | Data Files |
| .FCT | Data Files |
| .FDB | Data Files |
| .FDM | Data Files |
| .FES | Data Files |
| .FE_LAUNCH | Data Files |
| .FFD | Data Files |
| .FFO | Data Files |
| .FHC | Data Files |
| .FID | Data Files |
| .FLK | Data Files |
| .FLL | Data Files |
| .FLO | Data Files |
| .FLOW | Data Files |
| .FLT | Data Files |
| .FO | Data Files |
| .FOB | Data Files |
| .FOP | Data Files |
| .FOX | Data Files |
| .FPA | Data Files |
| .FRL | Data Files |
| .FRM | Data Files |
| .FRO | Data Files |
| .FSC | Data Files |
| .FSIF | Data Files |
| .FSS | Data Files |
| .FTL | Data Files |
| .FTW | Data Files |
| .FXF | Data Files |
| .FXG | Data Files |
| Extension | File Description |
| .GAL | Data Files |
| .GALLERYITE | Data Files |
| .GAN | Data Files |
| .GCX | Data Files |
| .GDF | Data Files |
| .GED | Data Files |
| .GEDCOM | Data Files |
| .GEN | Data Files |
| .GGB | Data Files |
| .GHF | Data Files |
| .GIS | Data Files |
| .GLD | Data Files |
| .GMS | Data Files |
| .GNO | Data Files |
| .GP3 | Data Files |
| .GPI | Data Files |
| .GPP | Data Files |
| .GPR | Data Files |
| .GRA | Data Files |
| .GRAMPS | Data Files |
| .GRD | Data Files |
| .GRF | Data Files |
| .GRIB | Data Files |
| .GRK | Data Files |
| .GRR | Data Files |
| .GRT | Data Files |
| .GRV | Data Files |
| .GS | Data Files |
| .GTAR | Data Files |
| .GUI | Data Files |
| .GWK | Data Files |
| .GWP | Data Files |
| .GXL | Data Files |
| .HAL | Data Files |
| .HBCI | Data Files |
| .HCC | Data Files |
| .HCE | Data Files |
| .HCI | Data Files |
| .HCL | Data Files |
| .HCU | Data Files |
| .HCX | Data Files |
| .HDA | Data Files |
| .HDF | Data Files |
| .HDI | Data Files |
| .HDL | Data Files |
| .HDS | Data Files |
| .HIF | Data Files |
| .HM3 | Data Files |
| .HMT | Data Files |
| .HMXP | Data Files |
| .HMXZ | Data Files |
| .HOL | Data Files |
| .HPID | Data Files |
| .HS2 | Data Files |
| .HSK | Data Files |
| .HST | Data Files |
| .HTB | Data Files |
| .HTKE | Data Files |
| .HUH | Data Files |
| .HVP | Data Files |
| .HVS | Data Files |
| .IBA | Data Files |
| .IC0 | Data Files |
| .IC4 | Data Files |
| .IC6 | Data Files |
| .IC7 | Data Files |
| .IC8 | Data Files |
| .IES | Data Files |
| .IGC | Data Files |
| .II | Data Files |
| .IIF | Data Files |
| .IIF1 | Data Files |
| .IMAGE | Data Files |
| .IMR | Data Files |
| .IMT | Data Files |
