OfficePopupCalendarforExcel is a Microsoft Excel addin file that presents a calendar
for simplified date entry into a selected cell using one of a variety of date formats,
including Julian dates.
The calendar may be left open in view or minimized to the Windows task bar.
The calendar is available from new menu items on the formatting toolbar as well
as the cell context menu popup toolbar. Any number of cells may be filled with
selected dates while the form is open.