.PT3 File Overview

File Extension:	PT3
File Type Description:	Harvard Device Driver File
File Type Developer:	Harvard Graphics
Primary Associated Software:	Harvard Graphics ChartXL
Primary Software Developer:	Harvard Graphics

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Home File Types Uncommon Files PT3

What is File Extension PT3?

Harvard Graphics ChartXL is the primary software program that utilizes the Harvard Device Driver File file, originally developed by Harvard Graphics. Data from our web servers (annonymous users) show that PT3 files are most popular in United States and are often used by Windows 10. Frequently these users are visiting our web site using Google Chrome.

Associated Developers and Software

	Adobe PageMaker by Adobe Systems Incorporated
	ProTracker Studio by Lars Hamre, Anders Hamre, Sven Vahsen, Rune Johnsrud
	Harvard Graphics ChartXL by Harvard Graphics
	Unknown Software by Unknown Developer

Top PT3 User Languages

Top PT3 File User Browsers

Desktop Friendly?

Mobile Friendly?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac
	Amiga

Other File Types Related to PT3 Files

Extension	File Type Developer	File Category	File Type Description
.PL3	Harvard Graphics	Data Files	Harvard Graphics Chart Palette
.SY3	Harvard Graphics	Data Files	Harvard Graphics Symbol File
.IN3	Harvard Graphics	Data Files	Harvard Graphics Input Device Driver File
.HCX	Harvard Graphics	Data Files	Harvard ChartXL Chart
.CH3	Harvard Graphics	Page Layout Files	Harvard Graphics DOS Chart File
.FC	OpenText	Settings Files	FirstClass Settings File
.HDW	Harvard Graphics	Graphic Files	Harvard Graphics Graphic File
.HGS	Harvard Graphics	Graphic Files	Harvard Graphics Graphic File
.HFX	Smith Micro Software	Data Files	HotFax Data File
.EX3	Harvard Graphics	Graphic Files	Harvard Graphics Device Driver File