merging
It is called a spreadsheet or a worksheet.
Select the whole worksheet and press backspace/delete.
When creating a pivot table, you are given the option of placing it in a new worksheet or in the current one. So you just need to specify a cell in a blank area of the current worksheet. Then it won't create a new worksheet.
horizontal lines and vertical lines
Convert the table into a range
To a worksheet.
When you look at a worksheet in Excel you can see all the cells, because of the lines around them. Those are gridlines. You can also add borders, to make heavier lines around cells. Gridlines can be turned off completely, by going to the Options menu and the View section and removing the tick beside Gridlines.
Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.Data sheet view shows data laid out like a table or a worksheet in a spreadsheet. The headings of fields will be at the top of each column.
table
table
They can be embedded in a worksheet or can be on their own chart sheet.