Importing, clipping & saving images using Scripting

Im looking to create/modify a script that will import an of image clip it into a specifically sized rectangle and then save the file. Quite simple in theory but with no scripting knowledge I'm not getting to far...

So I've used the script in the below thread to create the rectangles from a csv. Now I'm looking at adding a column to the csv which will have a corresponding file path for each relevant image so it can be imported.

https://community.adobe.com/t5/illustrator-discussions/need-help-to-create-vector-shapes-with-csv-width-x-height-data/m-p/11375175

Would appreciate any input. Many thanks!