| File Extension: | 2DK |
| 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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IBM created the OS/2 Saved SKF Format (2DK) file for the OS/2 software series. Annoymous user data statistics infer that 2DK files are most popular in United States and with those using Windows 10 devices. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | OS/2 |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .1DK | IBM | Backup Files | OS/2 Saved SKF Format |
| .ADK | IBM | Backup Files | OS/2 Saved SKF Format |
| .6DK | IBM | Backup Files | OS/2 Saved SKF Format |
| .OR3 | IBM | Data Files | IBM Lotus Organizer 97 File |
| .OR4 | IBM | Data Files | IBM Lotus Organizer 97 GS File |
| .SGT | IBM | Settings Files | SPSS Chart Template File |
| .AIO | IBM | Developer Files | APL Transfer Format File |
| .STI | Oracle Corporation | Data Files | StarOffice Presentation Template |
| .12 | IBM | Data Files | IBM Voice Type Languages Scripts Data File |
| .WG1 | IBM | Spreadsheet Files | Lotus 1-2-3 Worksheet File |
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