thanks for your reply

it would be interesting if it works, but I got the message "Cannot find ^(\d+),([A-Za-z]+),([A-Za-z]+),(\d+),(.*) anywhere in the document"

(regex are enabled)

also, please note that the original text is:

34,George,Clooney,3456346,LDL,356,mg
34,George,Clooney,3456346,HDL,324,ml
34,George,Clooney,3456346,VLDL,635,kg
34,Tom,Cruise,4573456,LDL,463,dl
34,Tom,Cruise,4573456,HDL,746,cm
34,Tom,Cruise,4573456,VLDL,435,dc
35,Al,Pacino,5646464,LDL,467,hg
35,Al,Pacino,5646464,HDL,352,df
35,Al,Pacino,5646464,VLDL,643,rf

and not just:
34,George,Clooney,3456346,LDL,356,mg
34,George,Clooney,3456346,HDL,324,ml
34,George,Clooney,3456346,VLDL,635,kg

any hint?