bulk edit item descriptions

[occasions.occasion]

Hi all,
im looking for a bit of advice here,
ive made a stupid mistake due to rushing and not reading properly

i was trying to add a little paragraph to my descriptions ( 213 of them) but instead of just adding the bit i wanted, i added the whole description again, so now all my auctions have 2 descriptions on them one being the old one and one being the new one with the new paragraph in it

all i want to do is to delete the added by seller paragraphs that were added and leave the original description that is at the top, but im not sure how, i have tried the replace (Case sensitive) part but it didn't work, so now im a bit lost and stuck with 2 descriptions on all of my 213 auctions

hope this make sence

thanks

vince

[occasions.occasion]

i have discovered i can edit them 1 by 1 to delete this second description, please dont tell me i have to do this all separately as i will loose the will to live editing 213 descriptions