i will use indexing in the table and write the optimized sql query to fetch the records
i can do this task, I can proved you web based Application on ASP.net. I have done this task in my lots of projects. I will give you a form with the Uploader from where you can select your excel/CSV file and will save in the database, And the uploaded records will be shown on a list with the filter. You can export the filtered record from that list. I will give you a button on that list to export the records.
I have 5 + year Experience in IT industry. I have strong knowledge of ,MVC4,Linq -to-Sql, JSON , Java Script,Jquery,Sql Server,SSAS,SSIS,SSRS,Microsoft Dynamics NAV, Crystal Reporting, RDLC Reporting On open Source I am also expert in PHP,Drupal,Wordpress,Magento,Joomla,Cake PHP,Codeigniter,payment intregation like ccavenue,paypal,stripe on Mobile Technologies I am expert in Phonegap. I have created more than 50 Projects of Different Domians like MLM,Management related ,ERP,CRM e.t.c.