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Details of extension .astc

On this page, we're going to take a closer look at the .astc file extension, which is related to ASTC Compressed Texture Data.

We'll explain what exactly a .astc file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .astc files into different formats, we'll give you some tips on how to do that too.

Let's see the file format associated with this file extension!


  1. ASTC Compressed Texture Data

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ASTC Compressed Texture Data

astc file - ASTC Compressed Texture Data
The ASTC file belongs to the Graphic category and works with ASTC Encoder, being used as an ASTC Compressed Texture Data. Adaptive Scalable Texture Compression (ASTC) is a lossy block-based texture compression algorithm developed by Jørn Nystad. The developer is still actively supporting the ASTC Encoder, likely. Based on our current information, ASTC Encoder does not use other file types.
Application: ASTC Encoder
Program name: -
Category: Graphic files
Mime-type: application/octet-stream
Related extensions:
.ima MeVisLab Image

The .astc file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .astc extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .astc file extension wrong?

In our database, we came across the following similar extensions:

.atc AttacheCase Encrypted File
.ast Astound Media Data
.astx Adobe Story Exported Script
.actc Actions Collection Data
.asc Atlantis Word Processor Spellchecker Data
.stc OpenOffice Calc Template

The .astc extension is frequently misused

People sometimes confuse the .astc filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

atc (1), ast (1), astx (1), actc (1), asc (1), stc (1)

Having trouble opening a .astc file?

If you want to open a .astc file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .astc association can trigger this error.

Windows can't open this file:

File: example.astc

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program with which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android