Sheets in a spreadsheet can help you organize and manage different sets of data in a single spreadsheet.
By default, a new spreadsheet has only one sheet. You can easily add additional sheets by clicking the plus button on the bottom right of your spreadsheet.
To rename a sheet, click on the button at the bottom-left of your screen for the particular sheet and select Rename, then enter the new name for the sheet.
To delete a sheet, click on the button of that sheet in the bottom-left of your screen and select the Delete option. Click on this option and a window asking you to confirm your intention to delete will be opened. In this window, click "OK" to confirm, and the selected sheet will be deleted.
You can also quickly jump to one sheet in your spreadsheet by clicking the menu button in the bottom right of your spreadsheet. This will display a menu with the list of all the sheet names. Click on the desired sheet name.