You can add or subtract a number of days to or from a date by using a simple formula, or you can use worksheet functions that are designed to work specifically with dates in Excel.

Add recurring tasks to a project for actions that repeat on a regular schedules. You can also create recurring reminders by adding repeating milestones.

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, …

If you have opened this workbook in newer versions of Excel for Windows or Excel for Mac and want to change the formula or create a similar formula, press F2, and then press Ctrl+Shift+Enter to make …

You can use a running total to watch the values of items in cells add up as you enter new items and values over time. To calculate a running total, use the following procedure.

If you're only keying on one date, just specify that date column for both Start date on calendar and End date on calendar. But if you have two dates to track (such as "project start" and "project completion"), …

You can add recurrence to a standard task list under Drafts by defining the recurrence settings and start and end dates. This changes the list from a one-time task list to a recurring task list series.

Describes a problem in which Excel fills in missing dates in a non-consecutive series of dates in the axis of a chart. A resolution is provided.

Using formulas in calculated columns in lists can help add to existing columns, such as calculating sales tax on a price. These can be combined to programmatically validate data.

Note: Recurring events are not supported, even if you manually set up a recurrence in the events list that you are using. You'll need to create a new event for each occurrence or, if you are setting up …