SVGs are usually compatible with most machines, there are a few exceptions. Cricut’s before the explore don’t support them, and silhouette only supports them if you’ve purchased design edition. Please make sure that your machine can use SVG files before you buy. DXF files are compatible with Silhouette Studio, without the Designer Edition upgrade.
SVG (scalable vector graphics) are made using layers, shapes and paths that can be resized and edited.