SD2 file format description

Many people share .sd2 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .sd2 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .sd2 files.

3 filename extension(s) found in our database.

.sd7 - SAS Data Set

The SD7 data files are related to Base SAS. The SD7 file is a SAS Data Set. SAS (Statistical Analysis System) is an integrated system of software products provided by SAS Institute.

Base SAS
Data files
- / -
sas7bdat, sd2
SAS Data Set related extensions:
Getright Skin
Ashlar-Vellum Graphite Drawing
Windows Mobile Registry Entry Data
BrainVoyager QX Regions-of-interest TC Data
CrystalControl2 Screen Data
LabVIEW XNode Data

.sd0 - Dali Raw Image

The SD0 graphic files are related to XnView. The SD0 file is a Dali Raw Image.

Graphic files
- / -
sd1, sd2
Dali Raw Image related extensions:
ZX Spectrum Hobetta Image
Pocket PC Bitmap Image
Amapi Image
Sony Mavica Picture
GoDot Image
TI-73 Bitmap

.sdii - Sound Designer 2 Audio

The SDII audio files are related to Avid Pro Tools. The SDII file is a Sound Designer 2 Audio. The SDII (Sound Designer II, sometimes seen abbreviated as SD2) 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 Audio related extensions:
Korg Mono/Poly Program
DTS Encoded Audio File
Nord Stage 2 Program
Sharp X68000 PCM Data
Hippel-COSO Music
Renoise Song Data

Naturally, other applications may also use the .sd2 file extension. Even harmful programs can create .sd2 files. Be especially cautious with .sd2 files coming from an unknown source!

Can't open a .sd2 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 .sd2 file extension is often given incorrectly!

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

cd2, d2, ds2, ed2, qd2, s2, s2d, sc2, sd, sde, sdq, sdw, sdz, sf2, sr2

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Sound Designer Audio
Multi-resolution Seamless Image Database
TIFF Screened Data
ArcSDE Connection File
STK Satellite Database Main File
ArcGIS Service Definition 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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