| File Extension: | C18 |
| File Type Description: | Dassault Systemes Catia V4 Sequential File |
| File Type Developer: | Dassault Systèmes |
| Primary Associated Software: | Dassault Systemes CATIA |
| Primary Software Developer: | Dassault Systèmes |
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Dassault Systèmes developed the Dassault Systemes Catia V4 Sequential File file type when the Dassault Systemes CATIA was initially released. Internal website statistics show that C18 files are most popular with users in United States and those running the Windows 10 operating system. Google Chrome is the predominant internet browser used by this population.
 | Dassault Systemes CATIA by Dassault Systèmes |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .SLDPRT | Dassault Systèmes | CAD Files | SolidWorks CAD Part File |
| .GL | John Bridges | Video Files | GRASP Animation |
| .CATALOG | Dassault Systèmes | CAD Files | CATIA Catalog File |
| .FIN | Interscape | Text Files | Sapir Torah Text |
| .SLDDRW | Dassault Systèmes | CAD Files | SolidWorks Drawing File |
| .MODEL | Dassault Systèmes | CAD Files | MODEL |
| .DLV | Dassault Systèmes | CAD Files | CATIA 4 Export File |
| .CGR | Dassault Systèmes | CAD Files | CATIA Graphical Representation File |
| .SWJ | Dassault Systèmes | Uncommon Files | SolidWorks Journal File |
| .DXF | Autodesk, Inc. | CAD Files | Drawing Exchange Format |
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