PROBLEM: Convert a csv file to LaTex.

$ cat Data.csv
%Rabbit Weight
Tubby,10 
Padma,9
Lakshmi, 6

Sarswati,   5

#Note that there is at least one blank line

#Solution: 
% delete blank line(s)  /^ *$/d
% do not process comments lines  /^ *%/d!
% convert "," to "&"   /s/,/\&/
% end each line with \cr  /s/$/ \\\\cr/

$ sed '/^ *$/d;/^ *%/!{s/,/\&/;s/$/ \\\\cr/;}' Data.csv