Letter Formatting with Mail Merge

I have a batch of business letters that must look polished and consistent in Microsoft Word. Each letter needs clear, well-aligned tables or simple charts embedded in the body, and a fully working mail-merge setup that pulls recipient data from an Excel sheet... (Budget: ₹750 - ₹1250 INR, Jobs: Data Integration, Excel, Microsoft Office, Microsoft Word, Office 365, Visual Basic, Word)