| Extension Name | Extension Type | Category | Dev.Company | File Format |
|---|---|---|---|---|
| .ALE File Extension | Avid Log Exchange File | Video | Avid Technology | Text |
| .AVX File Extension | Avid Plugin File | Plugin | Avid Technology | Unknown |
| .AVS File Extension | Avid Project Preferences File | Settings | Avid Technology | Unknown |
| .AAXPLUGIN File Extension | Avid Audio eXtension Plugin File | Plugin | Avid Technology | Unknown |
| .AVV File Extension | Avid Volume Bin File | Video | Avid Technology | Binary |
| .AVC File Extension | Avid Media Composer Script | Video | Avid Technology | Unknown |
| .AAF File Extension | Advanced Authoring Format File | Video | Avid Technology | Binary |
| .AFE File Extension | Avid File Exchange File | Data | Avid Technology | Unknown |
| .AVE File Extension | Avid User File | Settings | Avid Technology | Unknown |
| .CGRP File Extension | Pro Tools Clip Group File | Audio | Avid Technology | Binary |
| .DDB File Extension | Digidesign Database | Data | Avid Technology | Binary |
| .INS File Extension | Sample Cell II Instrument Definition File | Audio | Avid Technology | Binary |
| .ICB File Extension | Targa ICB Bitmap Image | Raster Image | Avid Technology | Binary |
| .MDB File Extension | Avid Media Database | Data | Avid Technology | Binary |
| .OMF File Extension | Open Media Framework File | Audio | Avid Technology | Binary |
| .PTF File Extension | Pro Tools 7 Session File | Audio | Avid Technology | Binary |
| .PTX File Extension | Pro Tools Session File | Audio | Avid Technology | Binary |
| .PTXT File Extension | Pro Tools Session Template | Audio | Avid Technology | Binary |
| .PTT File Extension | Pro Tools Session Template | Audio | Avid Technology | Binary |
| .PIO File Extension | Pro Tools I/O Settings File | Settings | Avid Technology | Unknown |
| .PIM File Extension | Pro Tools Controller Plug-in Mappings File | Plugin | Avid Technology | Unknown |
| .PMR File Extension | Avid Persisent Media Record File | Data | Avid Technology | Binary |
| .PTS File Extension | Pro Tools Session | Audio | Avid Technology | Unknown |
| .PTP File Extension | Pro Tools Preferences File | Settings | Avid Technology | Unknown |
| .PLG File Extension | Sibelius Plug-in | Plugin | Avid Technology | Unknown |
| .RGRP File Extension | Pro Tools Region Group File | Audio | Avid Technology | Unknown |
| .STU File Extension | Pinnacle Studio Project File | Data | Avid Technology | Binary |
| .SD2 File Extension | Sound Designer II File | Audio | Avid Technology | Binary |
| .SDII File Extension | Sound Designer 2 Audio File | Audio | Avid Technology | Binary |
| .TGA File Extension | Targa Graphic | Raster Image | Avid Technology | Binary |
| .AAN File Extension | Pro Tools Elastic Audio Analysis File | Data | Avid Technology | Unknown |
| .SD2F File Extension | Sound Designer 2 File | Audio | Avid Technology | Binary |