The table below provides some useful information about the .tnef extension. It answers questions such as:
- What is the .tnef file?
- What program do I need to open a .tnef file?
- Where can I find the specifications for .tnef?
- How can I convert .tnef file to another format?
We hope you find this page helpful and a valuable resource.
Details of extension .tnef
1 extension(s) and 0 alias(es) found in database.
Problems with .tnef files?
First check your registry for hidden errors!
| Extension: | .tnef |
|---|---|
| Type: | Transport Neutral Encapsulation Format |
| Category: | Data |
| Mime type: | application/octet-stream |
| Description: | |
| TNEF file is a Transport Neutral Encapsulation Format file. Transport Neutral Encapsulation Format (TNEF) is a Microsoft proprietary method for encoding Rich Text Format (RTF) messages sent across the Internet. A TNEF-encoded message contains a plain text version of the message, an attachment that contains the RTF version, and any OLE objects such as pictures or other attachments that were sent with the message. | |
| [Detailed description] [Sample not yet available] | |
| Open with: | Microsoft Office Outlook |
| Program name: | |
| Related links: | |
| none | |
| Aliases: | |
| none | |
| Related extensions: | |
| bad, bdp, bdr, cca, dbx, eml, mbox, mbx, mlm, msg, nws, rpmsg | |
Recommended software for .tnef files
Cannot open .tnef files on your system?
When windows gives you an error message saying that it cannot open
.tnef files, this means either:
- You need to identify a program that can open the file or
- Your registry may be damaged.
RECOMMENDED:
In both cases it is strongly recommended that you
run a free scan for registry errors.









