How to check the generated excel file give me good results

Hey guys,

I'm working on a big data and i want to know that how can i check my final data generated in excel will give me good results.

Please help.



Could you be more specific? What is in the xls file? What models do you use? A bit more context would certainly help.

Cheers, gabor

Thanks for your response...

I have data of tesco store customers (3000).....and i want to select best customers to whom i'll offer coupans and they will redeem.

data like- people who buy online, buy in store, last year purchase, this year purchase etc...

Let me know...if you can help in this.