Chapter 7 The Basics of Spreadsheets: Numbers, Labels, and Formulas In This Chapter Typing and formatting data Moving around a spreadsheet Searching a spreadsheet Editing a spreadsheet Printing Everyone needs to perform simple math. Businesses need to keep track of sales and profits, and individuals need to keep track of budgets. In the old days, people not only had to write down numbers on paper, but they also had to do all their calculations by hand (or with the aid of a calculator). That’s why people use Excel. Instead of writing numbers on paper, they can type numbers on the computer. Instead of adding or subtracting columns or rows of numbers by hand, Excel can do it for you automatically. Basically, Excel makes it easy to type and modify numbers and then calculate new results accurately and quickly. Understanding Spreadsheets Excel organizes numbers in rows and columns. An entire page of rows and columns is called a spreadsheet or a worksheet. (A collection of one or more worksheets is stored in a file called a workbook.) Each row is identified by a number such as 1 or 249; and each column is identified by letters, such as A, G, or BF. The intersection of each row and column defines a cell, which contains one of three items: Numbers Text (labels) Formulas
128 Part III: Playing the Numbers with Excel Numbers provide the data, and formulas calculate that data to produce a useful result, such as adding sales results for the week. Of course, just displaying numbers on the screen may be confusing if you don’t know what those numbers mean, so labels simply identify what numbers represent. Figure 7-1 shows the parts of a typical spreadsheet. Formulas usually appear as numbers, so at first glance, it may be difficult to tell the difference between ordinary numbers and numbers that represent a calculation by a formula. The strength of spreadsheets comes by playing “What-if?” games with your data, such as “What if I gave myself a $20-per-hour raise and cut everyone else’s salary by 25%? How much money would that save the company every month?” Because spreadsheets can rapidly calculate new results, you can experiment with different numbers to see how they create different answers. Figure 7-1: The parts of a typical spreadsheet. Labels Formulas Numbers Storing Stuff in a Spreadsheet Every cell can contain a number, a label, or a formula. To type anything into a spreadsheet, you must first select or click in the cell (or cells) and then type a number or text. Typing data into a single cell To type data in a single cell, follow these steps:
Office 2007 FOR DUMmIES‰ by Walla
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2 Part I: Getting to Know Microsoft
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In this part . . . Word processing
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In this part . . . The fear of publ
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In this part . . . After a few days
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In this part . . . Personal compute
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In this part . . . After spending y
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