I currently rely on an Excel workbook that lets visitors play with figures, see the results update instantly, and reorganise rows with a simple drag. I now need the same experience rebuilt for the web and embedded directly in my homepage. Core behaviour to mirror • Drag-and-drop rows or sections so the order of items can be rearranged in real time. • Selectable inputs (drop-downs, check-boxes, radio buttons, etc.) that feed the logic behind the scenes. • Instant calculations identical to the formulas living in the original spreadsheet, with totals and subtotals refreshing the moment something changes. Visual output The main visual is an interactive table that visitors can sort, filter and expand so they always see the numbers that matter to them. Charts, graphs or maps are not needed right now; the table is the hero. Technical notes My site is a standard HTML/CSS/JavaScript stack, so a lightweight React, Vue or vanilla JS component that I can drop into an existing div will fit best. You are free to use a data-grid library or craft it from scratch—as long as it stays fast, mobile-friendly and easy for me to maintain. Deliverables 1. Source code and minified production bundle of the interactive tool. 2. One-step embed snippet with clear placement instructions for my homepage. 3. A short read-me explaining how to tweak formulas or add new columns later. 4. Final demo link on your server so I can click through and confirm the behaviour matches the Excel file. I’ll supply the spreadsheet, the live page URL, and any design assets you might need. Looking forward to transforming this static sheet into a smooth, web-native experience.