| File Extension: | OTO |
| File Type Description: | AutoPano Project |
| File Type Developer: | Open Source |
| Primary Associated Software: | AutoPano |
| Primary Software Developer: | Kolor |
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Release of the AutoPano software program prompted the development of the AutoPano Project file type by Kolor. User statistics infer that these OTO files are popular with users from United States and most frequently found on the Windows 10 platform. Most of these users are running the Google Chrome web browser.
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .KPT | Open Source | Text Files | KPresenter Template File |
| .QAD | Corel | Raster Image Files | Corel WordPerfect Office Thumbnail |
| .DBA | PDC (Prolog Development Center) | Database Files | Turbo Prolog Database |
| .PZM | GraphPad Software | Page Layout Files | GraphPad Prism Project |
| .TEI | Image Systems | Graphic Files | TrackEye Image Sequence File |
| .ONX | Onyx Computing | Graphic Files | OnyxGrass Image |
| .400 | Unknown Developer | Graphic Files | Designer Graphics File |
| .IPH | XnSoft | Graphic Files | InterPaint (Hires) Image Format |
| .CMP | Microsoft Corporation | Settings Files | Windows Connection Manager Profile |
| .ST9 | XnSoft | Graphic Files | SBIG CCD Camera Image |
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