SFTDDE file format description

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

1 filename extension(s) found in our database.

.sftdde - Microsoft App-V Application Data

The SFTDDE data files are related to Microsoft App-V. The SFTDDE file is a Microsoft App-V Application Data. Microsoft Application Virtualization (App-V) is an application virtualization and application streaming solution from Microsoft.

Microsoft App-V
Data files
- / -
Microsoft App-V Application Data related extensions:
KRISTAL Waver Arrangement Data
Microsoft Frontpage Theme Data
Microsoft Money 99 Backup Data
Microsoft Publisher Backup Data
Microsoft Help 2 Merged Index
Microsoft Mathematics Worksheet

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

Can't open a .sftdde 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

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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


If you have useful information about the .sftdde file format, then write to us!

DataTypes.net >> SFTDDE file