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Punitha.R

You can first of all try so called "profilers"
like the ones integrated in Netbeans and Eclipse,
it is good to start from those to know which classes
take too much memory or which...

first of all, try to avoid using REQUEST variable,
it is too "heavy", i mean in REQUEST You have POST and GET
so try to send form, especially files, only using POST

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second thing, try to...

Hi Sumaira,
what type of data do You store in file,
are those the delimitered values (like using colon or tab)
or is it just plain text?

as for the datatypes, hmm,
it really depends what sort...