
microsoft.com
https://support.microsoft.com/en-us/office/enter-a…
Enter a series of numbers, dates, or other items
Quickly enter a series of dates, times, weekdays, months, or years You can quickly fill cells with a series of dates, times, weekdays, months, or years. For example, you can enter Monday in a cell, and then fill the cells below or to the right with Tuesday, Wednesday, Thursday, etc.