How to increase the resolution with a compressed image in Photoshop Elements

Hello. I just finished compressing ("Save For Web") over 100 images in medium resolution for a client who wanted the images for social media. After sending the medium-resolution files, the client asked for me to resend all the photos in high resolution.  What's the best way to do that with the images I've already edited? I removed objects from all the photos and refined them, but only saved them in the compressed format after being told they were being used for social media (and therefore didn't need to be high resolution). I'm using Photoshop Elements 2022. Thank you!!!

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