basic software where I can upload excel file and find data i want and the range of data

I need someone that can build very basic software. The software should have these characteristics: 1) Should be able to upload excel file data to it. 2) The software should be able to find -999.25 values in side data and create table to mention form where to where the value -999.25 exists. I have more details about the software when I choose the freelancer...this project should be simple.