1) Make sure your machine uses the Cricut Design Space software. Only Cricut Design Space compatible machines can use SVG files. (These are the "Explore" Cricut machines).
2) Make sure it is the SVG file that you are trying to upload. There are multiple file types included in the design folder, but only the SVG type file will work properly with the Cricut Design Space software. Please note, that if your computer has a web browser or other program set as the default program to open SVG files, the file type may be incorrectly listed within the folder. The best way to see the file types is to look at the file extension. If you are unable to see the file extensions, you can show them by following the instructions linked below.
http://kb.winzip.com/kb/entry/26/
3) After confirming the above, check which browser you are using to launch Design Space. After the latest update with Design Space, we've been noting some users have issues uploading some designs when using Chrome. But they should upload fine using Design Space on Firefox without issue. You can go to Design Space on Firefox by opening up Firefox and visiting the link below:
If you do not already have Firefox on your computer, it can be downloaded for free from the link below:
https://www.mozilla.org/en-US/firefox/new/
If you are still experiencing difficulty after completing all three steps above, please send us a screen shot of the issue and a screenshot of the files you are seeing in the product folder you downloaded so that we can best provide further assistance.