Hi @Luca1,
You can insert an image into an Excel file using the picture formatter.
The picture formatter accepts either base64 code of the source picture or a public link.
In case of using with the Plumsail Forms, you can take the URL output and use it with the image token:
This is an example:
- a Plumsail Form with the attachments field. Please make sure to name it the same way as the image token.

- a Power Automate flow. It starts when the form is submitted and I use the URL output of the form to insert the picture.
Please give it a try.
Best regards,
Petr
Plumsail team

