Bookkeepers, project managers, HR departments and more use the Excel Date & Time functions WEEKNUM, ISOWEEKNUM, WORKDAY, WORKDAY.INTL to calculate time. Here's how.

Service invoice Our Excel templates list for professionals would be simply incomplete without an invoice or a sales receipt template.

How to Calculate Hours in Excel Excluding Weekends. An Excel spreadsheet can become an indispensable tool for your business when you harness its power for keeping records and doing computations.

DATEDIF(), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000. It's fallen off current Excel menus, but you can still use ...