126471 Convert Spreadsheet to web

Hi, I have an Excel spreadsheet with three worksheets in it that I would like to convert it to a web based tool. Basically, customers or students will be entering data in each cell and the results are calculated based on the formulas I have created for each cell. Please see attached. I prefer to use PHP or Flash. If interested and if this is something you can do, let me know. We could get started right away. Thanks, Kevin