This article explains how to hide and unhide worksheets using the context menu and the ribbon in Excel for Microsoft 365, Excel 2019, 2016, 2013, and 2010.
Excel Tips 19 – Hide and Unhide Worksheets in Excel
An Excel worksheet is a single spreadsheet of cells. Each cell can contain text, a number, or a formula, and each cell can refer to another cell on the same worksheet, workbook, or another workbook.
By default, all open Excel workbooks display worksheet tabs in the taskbar at the bottom of the screen, but you can hide or show them as needed. At least one worksheet must always be visible.
Hiding worksheets does not delete them. You can still refer to them in formulas and charts in other worksheets or workbooks.