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To fill a range of cells with a series of dates:

1. Select cell A1, press to enter the current date.
2. Select the range A1:A10.
3. Select Home -> Fill (in Editing Group) -> Series.
4. In the Series dialog box, check the Date and Month option buttons, and then click OK.
Note: To fill a series of quarters, type 3 in Step value text box.

To fill a range of cells with a series of dates using a shortcut:

1. Select cell A1, and press to enter the current date.
2. Point the mouse to the Fill handle in the bottom-right corner of the cell. The cursor changes to a plus symbol
3. Drag vertically by a right-click, and then release the mouse.
4. From the shortcut menu, select the series as desired.
Screenshot // Filling a Range with a Series of Dates in Excel 2007