Short description of Pop-up Excel Calendar 1.5.5: Pop-up Excel Calendar is a date picker for Microsoft Excel. It is seamlessly integrated with Excel and pops up a calendar when you activate a date cell. You pick or select a date from the calendar that pops up, instead of typing the date value manually, thus saving time and avoiding format mistake. The calendar can be activated in various ways, such as the value or format of the cell, or the label or value of the above cell. All are configurable.