The name of a sheet is independent of the name of the spreadsheet. You enter the spreadsheet name when you save it for the first time as a file. The document can contain up to 256 individual sheets, which can have different names.
工作表的名称与电子表格的名称无关。首次将电子表格作为文件保存时，需要输入电子表格的名称。文档中最多可以含有 256 个不同名称的工作表。