Write a script to transfer data

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Write a script to transfer data
We are a real estate company. When clients list their homes with us, they currently go onto our website and fill out our form we have created in 123formbuilder. Once the form has been submitted, it is automatically emailed to us. The data is also sent to a google sheet. We then go onto our local real estate listing website and manually input the data to list the clients house for sale. I need to create a script that will allow us to push the data from our google sheet to the local real estate listing website form. I have attached photos of the form we need to populate below.
Skills:
PHP
, Javascript
, Software Architecture
, HTML
, MySQL

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