Boolean logic: The method used to evaluate conditions, returning either TRUE or FALSE. Logical functions: The primary logical ...

In Excel, every date is stored as a serial number, starting from January 1, 1900, which is serial number 1. So, January 2, 1900, is serial number 2, January 3, 1900, is serial number 3, and so on.

How to Use Date and Time Serial Numbers in Excel Calculations Now that you know how serial numbers work for dates and times in Excel, you're ready to make the most of this knowledge in calculations.

To avoid reinterpretation of dates in workbooks you share with colleagues who use other operating systems, set your Excel preferences so your file uses the same date system -- 1900 or 1904 -- as ...

In his tutorial, we want to find the number of workdays between the start date and end date. In the cell where you want to place the result type: =NETWORKDAYS(A2, B2) A2 is the Start_date. B2 is ...

To ensure that Excel converts your date to a number enter it like this, without quotes: "4/4/2011". Then click on cell "A2" and enter the later of the two dates in the same manner.

How to use conditional formats for subtotals in Excel The original article includes conditional formatting formulas that evaluate the transaction totals in column E so you can eliminate the ...

Excel’s EOMONTH () function returns the last day in a month, and it handles leap years. Most users will use it to determine maturity dates, due dates, and even forecasting. Its syntax is simple: ...

Using Excel’s PivotTables and PivotCharts, you can quickly analyze large data sets, summarize key data, and present it in easy-to-read format. Here’s how to get started with these powerful tools.