1. Open Microsoft Excel: Open Microsoft Excel, click the File menu, click the New option, and select "Blank Document" in the pop-up new dialog box to create a new Excel file.

2. Set table style: You can use Excel's style tools to set table styles, such as setting table borders, table fonts, table backgrounds, etc.

3. Add header: Adding header is an important part of quotation. You can add a header to the first line of the table, which generally includes the title of the quotation sheet, product name, price and other information.

4. Add table contents: Add table contents at the beginning of the second line of the table, generally including product name, price and other information.

5. Add formulas: You can use Excel formula tools to add formulas, such as calculating total price and discount.

6. Save the file: click the file menu, then click the save option, enter the file name in the pop-up save dialog box, and save the Excel file.

The above are the specific steps to create a quotation sheet using Microsoft Excel. I hope I can help you.