Files with tnf file extension are email attachments in Microsoft's Transport Neutral Encapsulation Format. Used by Exchange Server.

Detailed description

Software that open tnf file

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TNF file extension - Transport Neutral Encapsulation Format

What is tnf file? How to open tnf files?

File type specification:

Email related data file type icon Email related data file type

The tnf file extension is mainly related to Microsoft's Transport Neutral Encapsulation Format.

TNEF is a proprietary email attachment format used by Microsoft Outlook and Microsoft Exchange Server.

MIME types:

The default software associated to open tnf file:

Microsoft Exchange Server icon

Microsoft Corporation logoMicrosoft Exchange Server  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Exchange Server is server side service used to manage electronic mails, calendaring, contacts and tasks. Microsoft Exchange is supported by variety of desktop e-mail clients (Microsoft Outlook, Apple Mail, Thunderbird) as well as smart mobile e-mail clients (Windows Mobile, Windows Phone, Android, iOS).

Help how to open:

Use compatible tools to work with *.tnf files.

How to convert:

Probably cannot be converted to anything else.

List of software applications associated to the .tnf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open tnf file, edit tnf file, convert tnf file, view tnf file, play tnf file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting tnf files.

Software that open tnf file - Transport Neutral Encapsulation Format

Programs supporting the exension tnf on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open tnf file action.

Microsoft Windows:

Main software associated with tnf file by default:
Microsoft Exchange Server small icon Microsoft Exchange Server
Other suggested software:
Microsoft Outlook small icon Microsoft Outlook

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