We are a small UK based company importing goods from overseas and selling in industrial style markets (e.g. automotive companies and engineers) We have a series of interlinked workbooks that we are using as our Management System that enable us to manage our data, have live stock positions, easily access customer prices, discounts, last order and purchase history, issue invoices and delivery notes and send statements and invoices automatically via email, etc. These interlinked workbooks have complicated formulas, VBA code, macros, command buttons and forms to automate tasks. We need someone that can fully understand and interpret our Excel 2010 workbooks / Management System and convert it all into a web-based (possibly javascript/HTML?) multi-user platform with the ability to restrict user access and have user log-ins. It will need to be a well-protected and secure system providing the ability to Import and export data to/from excel Initially we would probably focus on the 3 main workbooks currently sized at 7MB, 17MB and 25MB to get the new system up and running