In addition to basic calculation functions, Excel also provides data analysis tools that allow you to find the R2 of two lines with an Excel formula. R2, or R-squared, is the relationship between two ...

Launch Microsoft Excel. To highlight lines in an existing Excel document, click the "File" tab. Click "Open," browse to the spreadsheet and double-click it. Otherwise, Excel opens a new spreadsheet ...

How to reference cells with the COUNTIF function in Excel Your email has been sent Use COUNTIF to count values in a range that meet a certain condition and return a specified number to the cell.

The ease with which you can create a line graph in Excel on your PC or Mac will do much to dispel the misconception that the program is arcane and unapproachable. With just three clicks of a mouse (or ...