A daily updated filename extension database!

STIX file extension

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

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

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

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

✅ Structured Threat Information Expression Data

Structured Threat Information Expression Data .stix file icon
The STIX file is a Structured Threat Information Expression Data. Structured Threat Information Expression (STIX) is a language and serialization format used to exchange cyber threat intelligence (CTI).
STIX format description not yet available
Category: Data files
Application: STIX
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
STIX aliases:
STIX related links:
STIX related extensions:

✅ StuffIt Expander Archive

StuffIt Expander Archive .sea file icon
The SEA file is a StuffIt Expander Archive. Stuffit Expander is the most widely used expander and decoder utility on Mac.
SEA format description not yet available
Category: Archive files
Application: Stuffit Expander
Mime-type: application/x-sea
Magic number: -
Magic string: -
Sample: -
SEA aliases:
sit, sitd, sitx, stix
SEA related links:
SEA related extensions:
LH ARC Compressed Archive

ARJ Compressed Archive

Compressed Microsoft Cabinet File

LHarc Compressed Archive

Compressed File

WinRAR Archive

7-Zip Archive

BZip Compressed Data

BZip2 Compressed Data

PAQ PAQ9A Compressed Archive

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

🚫 The .stix file extension is often given incorrectly!

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

sitx, six, sti, stkx, stx, tix

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

EditPlus Syntax Data
Sealed TIFF Image
SIXEL Bitmap
Stitch Vista Expanded Data
StockChartX Data
Personal Stock Streamer Portfolio Data
Sinar CaptureShop 5.x Image
Delta Force Sound Text Xref Data
SureTrak Project Manager Project
SAS XPORT Transport File

🔴 Can't open a .stix 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 .stix 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 .stix file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文