The standard word activities have no ‘insert image’ option as far as I know.
This would mean either search for some less official packages that can facilitate image insertion, or use invoke code to insert an image. I’m sure ChatGPT can give you a code example on how to do that.
I also used another approach for a client. There was a nice-to-have feature to have a specific image on the front page of a report the bot creates. The image would be customer and product dependent so pretty much different each time. Since I used a document template to create the report, I created the front page included an empty / white image on the desired location. Teen using the standard activity replace image I was able to fulfil the requirement with the dynamic image.
Alternatively, if all of the above is not useful, one last thought:
If you have your excel table / sheet, print it, Use a default pdf printer and print the sheet or selection to a pdf file. Then, merge this pdf in your main and final pdf file using the various split/merge pdf activities.