| File Extension: | KTR |
| File Type Description: | KeyTruss Truss File |
| File Type Developer: | Keymark Enterprises |
| Primary Associated Software: | KeyTruss Design and Estimating Software |
| Primary Software Developer: | Keymark Enterprises |
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KeyTruss Design and Estimating Software is the primary software program that utilizes the KeyTruss Truss File file, originally developed by Keymark Enterprises. Our internal web tracking data indicates that Windows 10 operating system users, and those living in China, are the most likely to use KeyTruss Truss File files. Google Chrome is the predominant internet browser used by this population.
 | KeyTruss Design and Estimating Software by Keymark Enterprises |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | RSTS |
 | CPM |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .IMR | IBM | Data Files | Impromptu Report File |
| .FMF | Data Techniques Inc. | Graphic Files | Fax Man Document |
| .SBL | Adobe Systems Incorporated | Graphic Files | Shockwave Flash Object |
| .MAE | Interscape | Game Files | My Avatar Editor Character File |
| .GG | Uncommon Files | Google Desktop Gadget File | |
| .DWZ | Corel | Data Files | DVD MovieFactory Project File |
| .PHP | Panic | Web Files | PHP Source Code File |
| .PGL | Hewlett-Packard | Graphic Files | HP Plotter Language File Format |
| .DRT | Micrografx | Graphic Files | Micrografix Windows Draw Template File |
| .TBF | Trellian Software | Data Files | Trellian Button Factory File |
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