Learn how to apply AutoFill to Data Series in Microsoft Excel. AutoFill fills cells with data that follows a sequence or is based on data in other cells.

If you select the "Fill Series" radio button, Excel fills the cells with dates that increment by one day, starting from the date you typed.

How to Disable Date Auto Fill in Excel. Microsoft Excel's Auto Fill features help you quickly enter the same value in more than one cell or fill a series of cells with related or sequential values.

Why is my Fill series not working? There may be many reasons why your Fill series is not working in Excel. The most common cause of this issue is the disabled Fill handle.