Asset Extraction

XD does not know what you want to export (extract) unless you indicate it somehow. You can mark things for export, select and export, it all depends on your workflow. But handling that process can be done at any time, it does not have to be done in the beginning. Think of asset extraction as a process that involves user action though (you'll name layers, choose what to extract, etc), not something automatic that XD will do for you.

Hi @Nikhil23785093l3mx, if I'm not missing something, as far as I know there's no way to select all assets to be exported without marking them, since XD shouldn't decide what to be exported by itself I think. You can find all info about exporting assets here: https://helpx.adobe.com/xd/help/export-design-assets.html#export-artboards Hope this helps!