.SIX File Extension

Sixel Image

Developer Digital Equipment Corporation
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What is a SIX file?

A SIX file is a raster image saved in the Sixel image format. It contains an image that was meant to be printed by a Digital Equipment Corporation (DEC) dot matrix printer or computer terminal. SIX files are comprised of "sixels," which are sets of six pixel columns.

More Information

Screenshot of a .six file in ImageMagick
SIX file open in ImageMagick

DEC created the Sixel format for use on terminals and printers released in the 1980s. For example, the VT200 and VT300 series terminals can display images saved in the Sixel format.

Each Sixel image, or SIX file, is comprised of binary data encoded into strings of six-bit numbers. Each number is then converted into an ASCII character. Programs that can read the Sixel format convert these ASCII character strings into raster images.

How to open a SIX file

SIX file open in File Viewer Plus 4
SIX file open in File Viewer Plus 4

You can open a SIX file with ImageMagick (multiplatform) or SixelViewer (Windows). You can also view the text a SIX file contains in any text editor.

How to convert a SIX file

You can use ImageMagick to convert SIX files to other image formats, including:

  • .JPG - JPEG Image
  • .PNG - Portable Network Graphic
  • .TIFF - Tagged Image File Format
  • .BMP - Bitmap Image
  • .WMF - Windows Metafile
  • .MIFF - Magick Image
  • .SVG - Scalable Vector Graphics
  • .EPS - Encapsulated PostScript
  • .GIF - Graphical Interchange Format
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Programs that open SIX files

Windows
Mac
Linux

Verified by FileInfo.com

The FileInfo.com team has independently researched the Sixel Image file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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