Hi @sssamsss8, this is really tricky I am afraid.
Airtable does not allow direct uploads through their API (or at least they didn’t last time I checked). So you would have to first upload your file to a service providing a public URL for your file, then pass the URL on to Airtable. I’ve described the Airtable part in a bit more detail over here: Insert image to Airtable - #2 by MutedJam