How to express the number of days of a date in Excel as a serial number

Microsoft Excel is a spreadsheet software with an intuitive interface, excellent calculation functions and charting tools. When Excel software processes tabular data, you can use the DAY function to return the number of days of a certain date expressed as a serial number. In this tutorial, the editor will explain how to express the number of days of a date as a serial number in Excel. Operation steps 1. First find the Excel document that needs to be edited, double-click to open it and enter the editing interface. 2. Enter table data in the editing area and select a blank cell (for example: cell F9).

3. Enter the =DAY (F7) function formula in the cell.

4. Then click the Enter key on the keyboard.

5. Return to the editing area and use the DAY function in cell F9 to calculate the number of days expressed as a serial number for the date in cell F7.

Note: The number of days returned by the DAY function is between 1 and 31

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