Bulk replace product images

Hi all, working on a site with over 500 products, each product has 3 images. Now we’ve done a whole new photoshoot we will need to update all the product images to the new images.

I’m currently using the process of uploading images to media, then updating the image link in the csv. But it’s proven to be a very long process of finding the right row and pasting three separate links.

Does anyone know of a simpler process?

I’ve got a few other sites that will require the same treatment. So hoping to find a quicker process!