Excel worksheet consists of rows and columns.

**Rows** run horizontally and are identified by numbers (1, 2, 3, 4, …).

**Columns** run horizontally and are identified by letters (A, B, C, D, …).

The intersection of a column and row is called a **cell**. The cell is identified by the row number and column header, for example, **B3**.

## Number of columns and rows in one sheet

Depending on the Excel version you use, there is a different number of rows and columns.

### Excel 2003

In Excel 2003 there are **65,536** rows and **256** columns (**IV**).

### Excel 2007 and newer

Since Excel 2007 the number of rows and columns is much bigger than before. This time there are **1,048,576** rows and **16,384** columns (**XFD**).

Therefore the last cell is **XFD1048576**.

## Determining the column number

To know the number of rows is easy, but it’s much more complicated with the column header. How you can quickly determine what is the header for the column 2000?

You can use the following formula.

=LEFT(ADDRESS(ROW(),A2,2),FIND("$",ADDRESS(ROW(),A2,2),1)-1)

Just enter it to a cell and type the number into cell **A2**.

The column header for the 2000^{th} column is **BXX**.

If you want to know more about other ways to get column header, read an article about this subject.

## Navigating Rows and Columns

### Moving one cell at a time

To move one cell **left**, **right**, **up** or **down** you can use keyboard arrows.

You can also use:

**Enter** – move down

**Tab** – move right

**Shift + Enter** – move up

**Shift + Tab** – move left

### Moving to the first/last column/row

To move to the last column, use **Ctrl + right arrow**.

To move to the last cell, use **Ctrl + down arrow**.

It only works if you don’t have any cell in your way, otherwise, it will stop on the last cell in this area. In this case, you have to use the keyboard shortcut one more time.

In the following example, I selected cell **A2**. Now I press **Ctrl + right arrow** and the cursor stops at **C2**. I press one more time and it stops at **E2**.

Use the keyboard shortcut one more time. This time it will go to the last column.