.T03 File Overview

File Extension:	T03
File Type Description:	TaxCut 2003 File
File Type Developer:	H&R Block
Primary Associated Software:	H&R Block TaxCut 2003
Primary Software Developer:	H&R Block

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T03

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What is File Extension T03?

TaxCut 2003 File files were originally developed by H&R Block for the H&R Block TaxCut 2003 software application. Data from our web servers (annonymous users) show that T03 files are most popular in China and are often used by Windows 10. A majority of people seeking info on T03 files are using the Google Chrome browser.

Associated Developers and Software

H&R Block TaxCut 2003 by H&R Block

Top T03 User Languages

Top T03 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

Other File Types Related to T03 Files

Extension	File Type Developer	File Category	File Type Description
.H13	H&R Block	Data Files	H&R Block Canada 2013 Tax Return
.T99	H&R Block	Data Files	TaxCut Data File
.H17	H&R Block	Data Files	H&R Block Canada 2017 Tax Return
.T01	H&R Block	Data Files	TaxCut 2001 File
.T05	H&R Block	Data Files	TaxCut 2005 Tax Return Data
.H16	H&R Block	Data Files	H&R Block Canada 2016 Tax Return
.T06	H&R Block	Data Files	TaxCut 2006 Tax Return File
.T02	H&R Block	Data Files	TaxCut 2002 File
.T15	H&R Block	Uncommon Files	H&R Block 2015 Tax Return
.TAX2008	Intuit, Inc.	Data Files	TurboTax 2008 Tax Return