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Excel is a spreadsheet program that is part of the Microsoft Office package. A spreadsheet program allows you to organize data into columns and rows, analyze data and perform calculations on it.

There are three kinds of entries in spreadsheets: text, numbers and formulas.

You can use a spreadsheet to create a variety of files, including income statements, financial statements, budgets, databases and invoices.

Excel opens with a new blank workbook for you to enter and analyze data and to maintain lists of information.

An Excel file is referred to as a workbook. That is because it is like a book made up of pages. These pages are known as worksheets or spreadsheets.

A spreadsheet is made up of columns and rows. The columns are headed with alphabetic characters and the rows are headed with numbers. There are 16,384 columns. Since there are only 26 letters in the alphabet, Excel gets to columns Z and starts over with AA, AB, AC and all the way to AZ and then moves to BA. BB, BC and so forth

A small rectangle appears whenever a column and row intersects. These rectangles are known as cells. All cells have addresses. The address of the first cell in the upper left corner of the spreadsheet is column A and row 1 or A-1. The active cell has a dark box around it. When you type date, it automatically goes into the active cell.

If your hands are on the keyboard, it is faster to use keyboard navigation. Using keyboard navigation, the active cell moves with you.

The keyboard shortcuts are:

Control plus home moves to cell A
Control plus end moves to the end of data in the spreadsheet.
Home moves to the beginning or to the first cell of the row
Page down moves down one screen
Page up moves up one screen
Left, right, up, and down arrow moves one cell to the right, left, up, or down.

The fastest way to move to a cell is to use the Go To command, Control plus G. Type the cell address in the Go To dialog box and press Enter.

Entering data in a worksheet is a two-step process. One you type data in the cell, the next step is to complete the entry. If you suddenly realize that you selected the wrong cell, you may want to cancel the entry.
Pressing enter makes Excel complete the entry and the active cell moves down one row.
Pressing tab makes Excel complete the entry and the active cell moves right one column
Pressing an arrow key makes Excel complete the entry and the active cell moves in the direction of the arrow.
Pressing escape makes Excel remove any data typed in the cell and the active cell remains active.