| File Extension: | OL |
| File Type Description: | Valve Hammer Object Layout File |
| File Type Developer: | Valve |
| Primary Associated Software: | Valve Hammer Editor |
| Primary Software Developer: | Valve |
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Valve Hammer Object Layout File files are the most popular type of files to carry the OL file extension, originally developed by PTC for Creo Parametric 3D Modeling Software. According to our internal data, Valve Hammer Object Layout File files are most popular with users in China, with a majority of them running Windows 10. In most cases, these users are surfing the internet using the Google Chrome browser.
 | Creo Parametric 3D Modeling Software by PTC |
 | Valve Hammer Editor by Valve |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .MDL | MathWorks | Data Files | MathWorks Simulink Model |
| .VEH | Raven software | Game Files | Vehicle Data File |
| .MAP | id Software | Game Files | Quake Engine Map File |
| .CTX | Microsoft Corporation | Developer Files | Visual Basic Control Binary File |
| .CSD | Valve | Game Files | Steam Game Data Backup File |
| .VPK | Valve | Game Files | Valve Pak |
| .VTA | Valve | Graphic Files | Valve Face Flex File |
| .GCF | Valve | Game Files | Game Cache File |
| .DEM | Valve | Game Files | Video Game Demo File |
| .BMZ | Valve | Game Files | Portal Bonus Map Zip File |
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