Whats the EOX file for?
This file is new to v7, and it basically saves information pertaining to the DST file that previous versions did not save, including color information. On earlier versions, DST files could only be viewed with the default Windows Palette colors. This meant you would get red for needle #1, lime green for needle #2, blue for needle #3, etc. The background would be black for all designs. V7 now allows you to edit that color information and save it, even if you are working with a DST file. After editing the color information as you wish, just save the DST file as you normally would. Next time you load that color-edited DST file, you will notice that it will have retained all those colors you edited. The DST.EOX file is responsible for this color retaining to take place.