| File Extension: | 1DK |
| File Type Description: | OS/2 Saved SKF Format |
| File Type Developer: | IBM |
| Primary Associated Software: | OS/2 |
| Primary Software Developer: | IBM |
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OS/2 Saved SKF Format files are the most popular type of files to carry the 1DK file extension, originally developed by IBM for OS/2. Visitor data analysis shows that these OS/2 Saved SKF Format files are typically seen on Windows 10 user machines from China. Google Chrome is the predominant internet browser used by this population.
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | OS/2 |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .ADK | IBM | Backup Files | OS/2 Saved SKF Format |
| .6DK | IBM | Backup Files | OS/2 Saved SKF Format |
| .2DK | IBM | Backup Files | OS/2 Saved SKF Format |
| .PFL | PlotSoft | Page Layout Files | PDFill Project File |
| .PRZ | IBM | Data Files | Freelance Graphics Presentation File |
| .OR4 | IBM | Data Files | IBM Lotus Organizer 97 GS File |
| .MVR | IBM | Web Files | IBM HotMedia Multimedia File |
| .4GL | IBM | Developer Files | Informix 4GL Language Source Code |
| .ODT | Oracle Corporation | Text Files | OpenDocument Text Document |
| .XST | IBM | Settings Files | WebSphere Query Template |
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