The default name of the worksheet is sheet 1, sheet2, sheet3 ... If we think this name is not good, we can give it another name. Right-click the tab of the worksheet to be renamed (when we click Rename, letters sheet 1 will become modifiable, so we can just enter the name we like, such as "report sheet", where renaming is similar to renaming files in windows, such as letters sheet 1) and select Rename from the pop-up menu.