I am a .Net Developer with 4+ years of experience in developing windows desktop applications, powershell and .Net web services. During my time at Microsoft, i had multiple opportunities to work on large scale projects for windows based software, including tasks ranging from design, architecture, development, to testing, triage and bug fixing.
We can create a simple desktop application to address your requirements. We can read the formulas and data from the excel file and use it to calculate cost in our application. I would also conduct proper testing to ensure user acceptance.
I would like the opportunity to help you with your requirements. Please feel free to contact me to discuss the project any further. Thank you for your consideration.