A daily updated filename extension database!

ST9 file extension

The table below provides useful information about the .st9 file extension. It answers questions such as:

  • What is the .st9 file?
  • What program do I need to open a .st9 file?
  • How can the .st9 file be opened, edited or printed?
  • How can I convert .st9 files to another format?

Table of Contents

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

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

✅ SBIG CCD Camera Image

STX file is a SBIG CCD Camera Image. Santa Barbara Instruments Group (SBIG) is a leader in the astronomical camera field.
STX format description not yet available
Category: Graphic files
Application: SBIG Software
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
STX aliases:
st4, st5, st6, st7, st8, st9
STX related links:
STX related extensions:

Other types of files may also use the .st9 file extension.

🚫 The .st9 file extension is often given incorrectly!

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

st, sti, sto, stp

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Atari ST Standard Floppy Disk Image
WSxM SPM Processed Data
Catia Document
Neopaint Stamp
MotionTracking Statistic Filters and Masking Parameters Data
HTML Help Stop Words
Sinar CaptureShop 5.x Image
MSX2 Dynamic Publisher Stamp
Microsoft Sharepoint Site Template
StarOffice Impress Template

🔴 Can't open a .st9 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 .st9 file association, check the FAQ.

🔴 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 .st9 file extension, write to us!

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