Excel Inventory Entry Help

I’m just starting out and need someone to take raw inventory information—item names, SKUs, quantities, and prices—and enter it accurately into an Excel spreadsheet. The sheet should be cleanly formatted with sortable columns, basic validation to prevent duplications, and an automatic total-quantity field.

Because I’m a beginner, please include a brief note beside the first few rows explaining any formulas or data-cleaning steps you apply so I can learn from the process. A sample template I can reuse later would be a big plus.

Deliverable: a completed, ready-to-use Excel file containing my inventory list and the short “how-to” notes mentioned above.