Software & Apps File Types What's a DST File and How Do You Open One? One file extension supports several unrelated applications Share Pin Email Print File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated January 30, 2020 A file with the .DST file extension could be an AutoCAD Sheet Set file created by Autodesk's AutoCAD program to hold several drawing layouts. Tajima Embroidery Format uses the DST file extension, as well. The file stores stitching information that describes how the software should control the sewing needle. It's used by a variety of embroidery machines and programs. Other DST files might be DeSmuME Save State files associated with the Nintendo DS emulator called DeSmuME. These files are what's created when you save the game state within DeSmuME. How to Open a DST File AutoCAD's built-in Sheet Set Manager tool opens DST files that are Sheet Set files. The same tool is used to make DST files. You can display it through View > Palettes > Sheet Set Manager. Open DeSmuME State Files with the DeSmuME program. It can also create a DST file through File > Save State File. If you're dealing with data related to the embroidery format, a few DST file viewers you can get include Wilcom's TrueSizer, Embroidermodder, Embird's Studio, BuzzXplore (previously called Buzz Tools Plus), SewWhat-Pro, and StudioPlus. Wilcom also has a free online DST viewer called TrueSizer Web. Some similar Tajima file formats supported by TrueSizer and probably some of these other DST openers include Tajima Barudan (.DSB) and Tajima ZSK (.DSZ). A simple text editor like Notepad++ shows some of the information in plain text, so it's only useful for reading the coordinates that the embroidery program pulls from the DST file. To open the DST file as an image to display the design, use a DST converter. How to Convert DST Files AutoCAD should be used to convert its DST files to any other format. It's unlikely that a different tool can do a better job than AutoCAD itself. Likewise, your best option for converting an embroidery-related DST file is to use the same program that created it. That way, the original content that was used to build the instructions for the DST file export to the new format. If you don't have the original software that was used to make your specific DST file, at least try using the programs mentioned above that can open files in the Tajima Embroidery format. There might be an Export or Save As option that serves as a DST converter. For example, Wilcom TrueSizer converts DST to PES if you need your file to be in the Deco/Brother/Babylock embroidery file format. TrueSizer Web converts DST files too, to a large variety of file formats, including but not limited to, Janome, Elna, Kenmore, Viking, Husqvama, Pfaff, Poem, Singer EU, and Compucon. To convert DST to JPG or PDF to see the pattern as an image, consider using a simple file conversion service like the free Convertio. Just upload your DST file to that website and choose a conversion format, and then download the converted file back to your computer. Convertio supports a wide variety of file formats, which means you can also convert your DST file to AI, EPS, SVG, DXF, and other formats. However, the quality or usefulness of a DST conversion with this tool might not be what you're after unless you merely need to confirm the image. It's unlikely that DeSmuME State Files can be converted to a new format because the data is useful for games played within that specific emulator. Still Can't Open the File? If you do in fact have a DST file, but it's not able to be viewed correctly, consider that you might be using the wrong program. For example, while embroidery files ending in .DST can most likely work with any other program that opens embroidery data, they can't be read correctly with DeSmuME or AutoCAD. If the file cannot open with the correct program, the file itself may be corrupt. Restore from a backup copy, if you have one.