So I do alot of work with excel spreadsheets, and cant figure out how to do this. basically I have a cell that will have an email chain with response.. So the cell will have multiple email addresses in it when i export all of the email responses into a CSV file from outlook, but I just want to extract the ones at the very end of the cell that have the "unsubscribe" in front of them so it looks like this below.

?subject=Unsubscribe%TH "

would it be possible to do a search and just pull the last part after "unsubscribe" and put it into the cell next to it? Just a generic email pull wont work because i just need the last one, otherwise it will pull our email address and other ones I dont need.

I do alot of these and it would help the entire operation a whole lot