I’m putting together an all-in-one wedding budgeting system that works seamlessly in both Excel and Google Sheets. The core of the file will be a budget calculator/planner, but I also need it structured so that day-to-day data entry remains quick and error-free. Here’s what the finished workbook should let me do: • Track every expense and payment in one place, automatically updating category and overall totals. • Log all sources of income (gifts, contributions, personal funds) and see the running balance. • Maintain a live dashboard that visualises key numbers—total budget, amount spent, remaining funds, and any category overspend. • Plan the full wedding timeline with milestones (deposit dates, vendor deadlines, final payments). • Manage vendor details (contact info, quotes, contract status, payment schedule) in a dedicated sheet that feeds into the main budget. • Keep an interactive checklist for tasks, colour-coded by status, linked to a calendar view. • Store guest lists with RSVP tracking and the ability to calculate per-head costs automatically. Your job is to set up the structure, formulas, named ranges, data-validation dropdowns, and any conditional formatting that keeps everything tidy. A clean, intuitive layout is more important than flashy design, but an at-a-glance dashboard with simple charts or gauges for the big numbers will really help. Deliverables 1. Excel (.xlsx) and Google Sheets versions with identical functionality 2. Clear cell-protected template ready for my ongoing data entry 3. Brief walkthrough (sheet comments or short Loom video) so I understand how to maintain it If you’re comfortable building robust, user-friendly spreadsheets that do the heavy lifting in the background, I’d love to see examples of similar planners you’ve created and discuss the best workflow to get this live quickly.