Final answer:
The option to scale a worksheet to fit on one page is found under the Page Layout tab in Excel. In the Page Setup dialog box, you can adjust the scaling options to fit the content on one page.
Step-by-step explanation:
You can scale a worksheet to fit on one page using an option found in the Page Layout tab of the Page Setup dialog box in Microsoft Excel. To do this, go to the Page Layout tab, click on 'Size', and then select 'More Paper Sizes' at the bottom of the dropdown menu. This will open the Page Setup dialog box. In the Page Setup window, you will find the scaling options under the 'Page' tab. Here you can select 'Fit to' and adjust the number of pages wide or tall that you want your worksheet to fit on. By choosing '1 page' wide by '1 page' tall, you instruct Excel to scale your worksheet to fit on a single page.