| File Extension: | EX3 |
| File Type Description: | Harvard Graphics Device Driver File |
| File Type Developer: | Harvard Graphics |
| Primary Associated Software: | Harvard Graphics ChartXL |
| Primary Software Developer: | Harvard Graphics |
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EX3 files are a type of Harvard Graphics Device Driver File developed for Harvard Graphics ChartXL by Harvard Graphics. Internal website statistics show that EX3 files are most popular with users in United States and those running the Windows 10 operating system. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.
 | Harvard Graphics ChartXL by Harvard Graphics |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .FC | OpenText | Settings Files | FirstClass Settings File |
| .SYW | Yamaha Corporation | Audio Files | Yamaha SY99/SY85 Audio File |
| .CH3 | Harvard Graphics | Page Layout Files | Harvard Graphics DOS Chart File |
| .HDW | Harvard Graphics | Graphic Files | Harvard Graphics Graphic File |
| .HCX | Harvard Graphics | Data Files | Harvard ChartXL Chart |
| .IN3 | Harvard Graphics | Data Files | Harvard Graphics Input Device Driver File |
| .HGS | Harvard Graphics | Graphic Files | Harvard Graphics Graphic File |
| .PT3 | Harvard Graphics | Uncommon Files | Harvard Device Driver File |
| .HFX | Smith Micro Software | Data Files | HotFax Data File |
| .PL3 | Harvard Graphics | Data Files | Harvard Graphics Chart Palette |
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