SD2F file format description

Many people share .sd2f files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .sd2f file can be edited, converted or printed with. On this page, we try to provide assistance for handling .sd2f files.

1 filename extension(s) found in our database.

.sd2f - Sound Designer 2 Sound

The SD2F audio files are related to Avid Pro Tools. The SD2F file is a Sound Designer 2 Sound. The SDII (Sound Designer 2) is a monophonic/stereophonic audio file format, originally developed by Digidesign for their Macintosh-based recording/editing products.

Avid Pro Tools
Audio files
- / -
Sound Designer 2 Sound related extensions:
Speex Compressed Audio
X-Tracker Music Module
Sound Designer 2 Audio
Korg Mono/Poly Program
DTS Encoded Audio File
Nord Stage 2 Program

Naturally, other applications may also use the .sd2f file extension. Even harmful programs can create .sd2f files. Be especially cautious with .sd2f files coming from an unknown source!

Can't open a .sd2f 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.

The .sd2f file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

d2f, sd2, sdef, sdf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

MDL Molfile Data
Iconics GraphWorx32 Symbol Library
Microsoft SQL Server Database
FreeWave Tool Suite Data
Sound Designer 2 Audio
Autodesk Mapguide Spatial Data

Operating systems 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

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