Generate a 7-sheet Excel cost workbook:
| Sheet | Contents |
|---|---|
| Summary | Executive overview, total costs, key assumptions |
| Infrastructure | Azure VMs, storage, network, managed services |
| Team | Role breakdown, FTE counts, day rates |
| Timeline | Phase breakdown, milestones, dependencies |
| Risks | Identified risks with contingency amounts |
| Assumptions | All assumptions behind the estimates |
| Requirements | Full requirements list with scores |