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Excel's Formula - sisman

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410<br />

Part IV: Array <strong>Formula</strong>s<br />

Figure 15-12: Using an array formula to return unique items from a list.<br />

Displaying a calendar in a range<br />

Figure 15-13 shows the results of one of my favorite multicell array formulas, a “live” calendar displayed<br />

in a range of cells. If you change the date at the top, the calendar recalculates to display<br />

the dates for the month and year.<br />

This workbook is available on the companion CD-ROM. The file is named array<br />

formula calendar.xlsx. In addition, you’ll find a workbook (yearly calendar.<br />

xlsx) that uses this technique to display a calendar for a complete year.<br />

After you create this calendar, you can easily copy it to other worksheets or workbooks.<br />

To create this calendar in the range B2:H9, follow these steps:<br />

1. Select B2:H2 and merge the cells by choosing Home➜Alignment➜Merge & Center.<br />

2. Type a date into the merged range.<br />

The day of the month isn’t important.<br />

3. Enter the abbreviated day names in the range B3:H3.

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