Tax exchange file format
File type: Accounting, financial and tax file
A .tfx file is a tax exchange data file saved in Tax Exchange Format. It is used to transfer tax-related data between compatible accounting and tax-preparation software.
The format is associated with Quicken.
Found 5 different file type records with the same tfx filename suffix.
File type category:
Accounting, financial and tax file
Date updated: October 17, 2026
Tax Exchange Format is an ASCII-based format for exchanging tax information. A .tfx file can contain tax-related data exported from an accounting application for use by compatible tax-preparation software.
The format is associated with Quicken, including Quicken for Microsoft Windows and Quicken Essentials for Mac on Apple macOS and Mac OS X. It is used alongside Quicken's main financial data files rather than as the application's primary database.
Support depends on the specific Quicken or tax-preparation software version. The format is intended for data exchange, so it may not preserve the complete account history, settings, or other information stored in a Quicken data file.
Open a .tfx file by importing it through the tax or data-exchange commands in a compatible version of Quicken. On Windows, use Quicken for Microsoft Windows; on a Mac, use Quicken Essentials for Mac if it supports the file.
A .tfx file is an exchange file rather than a document intended for direct editing. If the installed software does not offer a Tax Exchange Format import option, it may not be able to open the file correctly.
Conversion is normally performed by importing the file into compatible accounting or tax-preparation software and then exporting the data in another format supported by that program.
Because the file contains exchanged tax data rather than a complete Quicken dataset, exporting it may not retain all information from the original financial records.
Software apps that import tfx files:
Microsoft Windows
Apple macOS / Mac OS X
Software applications that handle other tasks involving tfx files:
Microsoft Windows
Apple macOS / Mac OS X
File type category:
Archive and compressed file
Date updated: June 28, 2019
Record marked as obsolete and not updated for a long time.
The tfx file extension is associated with the tar, a standard archive and compression format used by Unix and Unix-like operating systems.
The tfx is used by TAR.F compressed file archive (TAR and Freeze).
File type category:
Audio and sound file
Date updated: August 19, 2024
File extension tfx is also related to a special TFMX audio format. TFMX is short for The Final Music System Extended.
In late 1992 Marx Marvelous combined Martin Griffiths' Soundtracker player with Chris Huelsbeck's TFMX player code and created the first TFMX player for the Atari ST. It played both 4- and 7-voice modules. Some time later he created a TFMX player for Unix. In September, 1998, I, Per Lindén, made a Windows NT/95 version of the Unix player, that plays through the Windows Wave Mapper sound device. Now there is also a WinAMP plugin available.
You can playback these files using Winamp with TFMXPlug Plugin installed.
Audio files can be typically converted between various audio format.
Apps designed for playing tfx files:
Microsoft Windows
File type category:
Various data file
Date updated: November 19, 2018
The tfx file extension is associated with the Total Commander for Pocket PC, a file management software available for Windows Mobile platform and other operating systems.
The tfx file stores various data used by Total Commander.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
File type category:
Various data file
Date updated: December 12, 2018
Record marked as obsolete and not updated for a long time.
The tfx file extension was also used in Traffix, a discontinued traffic analysis software developed by the Dowling Associates, Inc.
This type of tfx file stores various data used for internal purposes of the Traffix.
You probably cannot access this file type directly. It contains data used by Traffix.
This file type is not meant to be converted and it would not make sense to do so anyway.
Software applications that handle other tasks involving tfx files:
Microsoft Windows
TRAFFIX
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