Working across teams, it's not uncommon to have design assets in various formats or file types. Thankfully, working with designs and assets created in illustrator won’t break your workflow, as it's simple to open these files and convert them into XD content.
To open an illustrator file in Adobe XD, simply right click the file and choose “Open with..” and select “Adobe XD” from the list of available applications. XD will open and load the Illustrator content into a new XD file, creating all the artboards, paths and layers.