>> MS-TNEF file

MS-TNEF file format description

Many people share .ms-tnef files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .ms-tnef file can be edited, converted or printed with. On this page, we try to provide assistance for handling .ms-tnef files.

1 filename extension(s) found in our database.

.ms-tnef - MS Transport Neutral Encapsulation Format

The MS-TNEF data files are related to Microsoft Office Outlook. MS-TNEF file is a MS Transport Neutral Encapsulation Format. Transport Neutral Encapsulation Format or TNEF is a proprietary email attachment format used by Microsoft Outlook and Microsoft Exchange Server.

Microsoft Office Outlook
Data files
- / -
MS Transport Neutral Encapsulation Format related extensions:
Microsoft Office Business Contact Manager Backup Data
PKCS #7 Compressed Message
Microsoft Office Outlook for Mac Database
Microsoft Outlook 2003 E-mail Cookies Data
Microsoft Exchange ESE Checkpoint File
Microsoft Exchange ESE Log

Naturally, other applications may also use the .ms-tnef file extension. Even harmful programs can create .ms-tnef files. Be especially cautious with .ms-tnef files coming from an unknown source!

Can't open a .ms-tnef file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

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