I'm not familiar with S3 buckets, but unless they have removed line breaks (which are control characters) then i don't really see what the problem is.
Sathish David Kumar N
ASKER
Actually in one csv file user can upload upto 6lac record , If we do java it take 2 to 3 min .
if AWS have any services gave to find how many records available then it will easy to create chank for that