When writing a formula that references other cells, it can sometimes be useful to check that those cells contain a valid value. In this lesson, we'll look at Excel's ISNUMBER function as a way of doing this.
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Sometimes you need to count the number of cells in a spreadsheet that contain a value or set of values. The COUNTIF function allows you to do this by counting only those cells in the range that meet the criteria you set. This lesson explains how to use COUNTIF, and provides an example of how you can use it.
Once you get used to using Excel, you can find that using the mouse to select data in your spreadsheet is somewhat slow and time consuming. Here's a quick technique for selecting a range of cells in Excel.
When creating a chart in Excel, Excel will default to inserting your new chart on the same worksheet that contains the data you created it from. This lesson shows you various options for moving or resizing your chart so it looks how you want it to, where you want it to be.
If you need a free option to create a PDF of a Microsoft Office document, your options will depend on which version of Microsoft Office you are using.
COUNTBLANK allows you to count the number of empty or blank cells in a range in Excel. This lesson shows you how to use COUNTBLANK, and also shares a couple of things to watch out for when you use COUNTBLANK in an Excel formula.
The COUNTIFS function in Excel counts the number of cells in a range that match a set of multiple criteria. COUNTIFS extends the COUNTIF function which only allows one criteria. It is similar to SUMIFS, which will find the sum of all cells that match a set of multiple criteria. This lesson shows you how to use COUNTIFS and provides some practical examples to help you understand how it works.
The MATCH() function allows you to find the position of a value in a list. For example, in a list of weekdays starting with Monday, MATCH() would return a value of 3 for Wednesday. This lesson explains how to use the MATCH() function in Microsoft Excel, explains where you might use it, and provides a real world example of the MATCH() function in action.
One of the last keyboard shortcuts I mastered in Excel was moving between worksheets. Fortunately it's easy, and you don't need to wait as long as I did.
In this lesson, we cover how to print an Excel spreadsheet with page numbers on each page. Excel has changed a lot over the years, but one thing that hasn't changed is the way that you insert page numbers into a spreadsheet. Unfortunately, Excel 2010 does not make it easy to find the options for doing this. This lesson covers the basics of inserting page numbers as well as providing an overview of some more advanced options.
When printing in Excel, it is sometimes useful to print a set of rows (e.g. column headings) on each page in the print out. There is nothing worse than having a printout that runs to multiple pages, with the column headings only printed on the first page. This lesson shows you how to get header rows printing at the top of every page in Microsoft Excel 2011 for Mac. You will also learn how to print header columns on the left of every page in your printout.
This lesson shows you how to calculate a running total between two dates in a column of data. An example might be calculating the total sales for the last 30 days up to today. Each row in the spreadsheet will calculate a new total based on the date in that row, counting back a specified number of days.
This lesson shows you a way to calculate the number of times a single character occurs in a cell in Excel, and provides a real-life example where I needed to split a column of cells containing part numbers into individual components for each part number.
Entering the same formula or value into multiple cells can be time consuming and boring. Most people, if they want to enter the same formula into a row or column of data, will enter the formula in the first cell, then copy and paste it into the rest of the cells where they need the formula. This lesson shows you an even faster way to do it.
This lesson shows you how to use Conditional Formatting in Excel to format cells containing dates that are in the past, using a conditional formatting rule that compares the date in a cell with today's date, and formats it a different colour if it is in the past. We'll also extend this conditional formatting example to check the value of another cell as part of our criteria for applying the formatting.
Do you need help with an Excel formula or function? We have lessons on a range of different Excel functions, and the list is growing all the time.