Can you try the script below?
import originpro as op
wks = op.find_sheet()
data = wks.to_list(0)
chunk_size = 4
chunked_list = [data[i:i+chunk_size] for i in range(0, len(data), chunk_size)]
wks = op.new_sheet()
wks.from_list2(chunked_list, 0, 0)
James