Professional Excel Invoice with Auto GST -- 2

I’m looking for a polished, ready-to-use invoice template in Microsoft Excel that fits a services business. The sheet must calculate GST automatically, apply any line-level or overall discount I enter, and roll everything up into clear subtotals and grand totals... (Budget: ₹600 - ₹1500 INR, Jobs: Data Analysis, Data Visualization, Excel, Excel Macros, Excel VBA, Microsoft Office, Visual Basic, Word)