Open MS-TNEF file - The best software for opening .ms-tnef files

MS-TNEF files: what are they and how do I open them?

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Microsoft Transport Neutral Encapsulation Format

An ms-tnef file extension is mainly associated with the Microsoft Transport Neutral Encapsulation Format used by e-mail clients.

Further details:

The ms-tnef file extension is related to the Microsoft Transport Neutral Encapsulation Format.

The Microsoft email clients Exchange and Outlook use the file format called Microsoft Transport Neutral Encapsulation Format (MS-TNEF) to send email messages in Rich Text Format (RTF).

By default, Exchange and Outlook send email messages as if they will be received by other Microsoft email clients, extracting the formatting out of the original document and encoding it into a TNEF block. They then send the message in two parts: the first part is the text, while the second is the formatting.

Open file with:

Microsoft Outlook

An e-mail management tool distributed with Microsoft Office suite

Microsoft Outlook Express

Default e-mail client installed in older Windows

Microsoft Mail

Old e-mail client for AppleTalk Networks

Windows Live Mail

E-mail client for Microsoft Windows

What is the meaning of a file extension?

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File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

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