1. Create any Workflow trigger just like you're used to.
2. Add "Export" action and configure the input data.
Check out the screenshots on demo page and input fields documentation for more info (see screenshots 2 and 3 on demo page).
3. Add "Download" action and set "Dynamic link" field to receive the result of previous step (see screenshot 4 on demo page).
4. If you want to insert an image into cells, it should be encoded in base64 and should have prefix "/b64img:" before it (see screenshot 3 on demo page).
Note: No separate image sizing supported for now, image scale is controlled by the unified params.
Note: CSV files do not support images integration.
Demo editor:
https://bubble.io/page?name=index&type=page&id=connectish-plugins&tab=tabs-1