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SDII file extension

The table below provides useful information about the .sdii file extension. It answers questions such as:

  • What is the .sdii file?
  • What program do I need to open a .sdii file?
  • How can the .sdii file be opened, edited or printed?
  • How can I convert .sdii files to another format?
  • Where can I find the specifications for .sdii?
  • Which MIME-type is associated with the .sdii extension?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.sdii file extension details

Sound Designer 2 Audio

Sound Designer 2 Audio .sdii file icon
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.
SDII format description not yet available
Category: Audio files
Application: Avid Pro Tools
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
SDII aliases:
SDII related links:
SDII related extensions:
Sound Designer 2 Sound

Other types of files may also use the .sdii file extension.

.sdii file extension error

The .sdii file extension is often given incorrectly!

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

dii, ssii, sdi, sii

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

AD Summation iBlaze Data
System Deployment Image
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ProReveal Test Data File
open .sdii file

Can't open a .sdii 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .sdii file association, check the FAQ.

.sdii file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .sdii file extension, write to us!

.sdii file extension

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