Write some software -- 2

I need you to develop some software for me. I would like this software to be developed for Windows using Python. I'm looking for a windows desktop application to combine with my existing project. The project will have multiple phases rolled out over the next few months depending on the succes of each fase. The initial idea is to have a single user access the app, no log in required yet and then enter view and edit data which is currently excel spreadsheet based, thus I want to incorporate data from different spreadsheet with basically the same format but different info into one application and also generate new spreadsheets from this application. At first all the info must be stored on this users computer but in the future I want this cloud based with multiple users, but that will be introduced at a later phase. For now the app must really be basic enough to do the mentioned above and no fancy things are required, thr idea is to have drop down lists and search buttons and options. The idea is to have one freelancer to do the rollout of this entire project life span and maintenance thereof. But the budget and interest is still very low and therefore a low cost app will be in order, also I want the source code to tweak aome things to my personal opinion and incorporate with my existing [login to view URL] there is any question please contact me, I will also forward the UI fromat i would like to run with, but still thats what i will edit at the end