mobile app development

Hi, I'm a financial planner and we use a fairly extensive spreadsheet for budgeting and cash flow among other analysis. I'd like to get our spreadsheet converted to a web-based program that will incorporate not only the features of our spreadsheet (being the simplicity and readily available and viewable data, but also be able to make changes from a single administrative source (me) and have changes distributed globally to the spreadsheet among all our clients. Ultimately, I'd like to have this program reside on our client's private client portal, which can be through our website. Let me know if you are a programmer that can do this and let's chat about the project scope and costs. Thanks! Ever