In that case the innards of Stefan’s script will to the stripping for you (I’ve cut off a big chunk at the bottom)
set csvText to "TruprintOrderNo, BatchNo, Cover, Month1Pic, Month1Cal, Month2Pic, Month2Cal, Month3Pic, Month3Cal, Month4Pic, Month4Cal, Month5Pic, Month5Cal, Month6Pic, Month6Cal, Month7Pic, Month7Cal, Month8Pic, Month8Cal, Month9Pic, Month9Cal, Month10Pic, Month10Cal, Month11Pic, Month11Cal, Month12Pic, Month12Cal, BackPage, OrderQty
1911304201001,00042367,200611251630071080.jpg,200611251630071081.jpg,200611251630071082.jpg,200611251630071083.jpg,200611251630071084.jpg,200611251630071085.jpg,200611251630071086.jpg,200611251630071087.jpg,200611251630071088.jpg,200611251630071089.jpg,200611251630071090.jpg,200611251630071091.jpg,200611251630071092.jpg,200611251630071093.jpg,200611251630071094.jpg,200611251630071095.jpg,200611251630071096.jpg,200611251630071097.jpg,200611251630071098.jpg,200611251630071099.jpg,200611251630071100.jpg,200611251630071101.jpg,200611251630071102.jpg,200611251630071103.jpg,200611251630071104.jpg,200611251630071105.jpg,1
1911304501002,00042367,200611251630140000.jpg,200611251630140001.jpg,200611251630140002.jpg,200611251630140003.jpg,200611251630140004.jpg,200611251630140005.jpg,200611251630140006.jpg,200611251630140007.jpg,200611251630140008.jpg,200611251630140009.jpg,200611251630140010.jpg,200611251630140011.jpg,200611251630140012.jpg,200611251630140013.jpg,200611251630140014.jpg,200611251630140015.jpg,200611251630140016.jpg,200611251630140017.jpg,200611251630140018.jpg,200611251630140019.jpg,200611251630140020.jpg,200611251630140021.jpg,200611251630140022.jpg,200611251630140023.jpg,200611251630140024.jpg,200611251630140025.jpg,1
1911307901003,00042367,200611251631350000.jpg,200611251631350001.jpg,200611251631350002.jpg,200611251631350003.jpg,200611251631350004.jpg,200611251631350005.jpg,200611251631350006.jpg,200611251631350007.jpg,200611251631350008.jpg,200611251631350009.jpg,200611251631350010.jpg,200611251631350011.jpg,200611251631350012.jpg,200611251631350013.jpg,200611251631350014.jpg,200611251631350015.jpg,200611251631350016.jpg,200611251631350017.jpg,200611251631350018.jpg,200611251631350019.jpg,200611251631350020.jpg,200611251631350021.jpg,200611251631350022.jpg,200611251631350023.jpg,200611251631350024.jpg,200611251631350025.jpg,1
"
set oldDelims to text item delimiters
set text item delimiters to return
set csvText to text items of csvText
set csvText to rest of csvText as text
set text item delimiters to oldDelims
--> "1911304201001,00042367,200611251630071080.jpg,200611251630071081.jpg,200611251630071082.jpg,200611251630071083.jpg,200611251630071084.jpg,200611251630071085.jpg,200611251630071086.jpg,200611251630071087.jpg,200611251630071088.jpg,200611251630071089.jpg,200611251630071090.jpg,200611251630071091.jpg,200611251630071092.jpg,200611251630071093.jpg,200611251630071094.jpg,200611251630071095.jpg,200611251630071096.jpg,200611251630071097.jpg,200611251630071098.jpg,200611251630071099.jpg,200611251630071100.jpg,200611251630071101.jpg,200611251630071102.jpg,200611251630071103.jpg,200611251630071104.jpg,200611251630071105.jpg,1
1911304501002,00042367,200611251630140000.jpg,200611251630140001.jpg,200611251630140002.jpg,200611251630140003.jpg,200611251630140004.jpg,200611251630140005.jpg,200611251630140006.jpg,200611251630140007.jpg,200611251630140008.jpg,200611251630140009.jpg,200611251630140010.jpg,200611251630140011.jpg,200611251630140012.jpg,200611251630140013.jpg,200611251630140014.jpg,200611251630140015.jpg,200611251630140016.jpg,200611251630140017.jpg,200611251630140018.jpg,200611251630140019.jpg,200611251630140020.jpg,200611251630140021.jpg,200611251630140022.jpg,200611251630140023.jpg,200611251630140024.jpg,200611251630140025.jpg,1
1911307901003,00042367,200611251631350000.jpg,200611251631350001.jpg,200611251631350002.jpg,200611251631350003.jpg,200611251631350004.jpg,200611251631350005.jpg,200611251631350006.jpg,200611251631350007.jpg,200611251631350008.jpg,200611251631350009.jpg,200611251631350010.jpg,200611251631350011.jpg,200611251631350012.jpg,200611251631350013.jpg,200611251631350014.jpg,200611251631350015.jpg,200611251631350016.jpg,200611251631350017.jpg,200611251631350018.jpg,200611251631350019.jpg,200611251631350020.jpg,200611251631350021.jpg,200611251631350022.jpg,200611251631350023.jpg,200611251631350024.jpg,200611251631350025.jpg,1
The next issue is to determine how the “paragraphs” of your csvText are terminated. Stephan used Return & LineFeed which is the standard Microsoft Windows (but would depend on the server that sent the data file to me), but when I copied the text above from the source of the page for your link, return by itself worked, and CRLF didn’t. Except for that, Stefan’s script will read each of the CSV files in the chosen folder, strip the first “paragraph” off, and write the data back to the original file. I think that’s exactly what you want.