| File Extension: | MA3 |
| File Type Description: | Harvard Graphics Macro |
| File Type Developer: | Software Publishing Corporation (SPC) |
| Primary Associated Software: | Harvard Graphics Presentation Software |
| Primary Software Developer: | Software Publishing Corporation (SPC) |
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Harvard Graphics Macro files are the most popular type of files to carry the MA3 file extension, originally developed by Software Publishing Corporation (SPC) for Harvard Graphics Presentation Software. Internal website statistics show that MA3 files are most popular with users in United States and those running the Windows 10 operating system. A high percentage of these users browse the web using Google Chrome.
 | Harvard Graphics Presentation Software by Software Publishing Corporation (SPC) |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .TP3 | Software Publishing Corporation (SPC) | Page Layout Files | Harvard Graphics DOS Template File |
| .PRS | Software Publishing Corporation (SPC) | Data Files | Harvard Graphics Presentation |
| .SH3 | Software Publishing Corporation (SPC) | Data Files | Harvard Graphics 3.0 Presentation File |
| .PR4 | Software Publishing Corporation (SPC) | Data Files | Harvard Graphics Presentation |
| .FN3 | Software Publishing Corporation (SPC) | Font Files | Harvard Graphics 3.0 Font File |
| .PPL | Open Source | Developer Files | Free Pascal Dynamic Library |
| .ABC | Adobe Systems Incorporated | Developer Files | ActionScript Byte Code File |
| .GLADE | Open Source | Developer Files | Glade Project File |
| .DIAGSESSION | Microsoft Corporation | Developer Files | Diagnostics Session File |
| .KDEVELOP | Free Software Foundation | Developer Files | KDevelop Project Data File |
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