I would like to say that I can give the installation of a software where it will take input file where the user can give the path of the file in the desktop and and clicking button, it will generate excel file from csv file. It can convert any csv file into excel, txt or pdf format. Let me know if you are ok with my idea.
I have experience in architecture and building applications both web, desktop and mobile. My work strategy is to give regular status updates and intermediate version whenever required. I use visio, balsamic and invasion for presenting my architecture and screen flows and get approval before starting actual work.