TEXTBEFORE and TEXTAFTER are a few more of my favorite Excel functions to clean messy spreadsheets. Excel's newer text ...

When you think of double quotation marks, you probably remember your English lessons in school. However, in Microsoft Excel, ...

Apple's Numbers spreadsheet for Mac, iPhone, and iPad, is not as powerful as Microsoft Excel, but most users will be ...

If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

In Excel, when it comes to the implementation of "lookup," VLOOKUP is undoubtedly the most frequently used function. However, when encountering the following problem, VLOOKUP becomes useless. The ...

In a support page, Microsoft notes that because the function uses AI, it can provide incorrect responses. As such, Microsoft ...

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

Learn how to create a drop-down list in Excel without or with color using conditional formatting and data validation rules.

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a portfolio’s asset allocation.

CNBC Select explains what range is considered to be a bad credit score, how to get a free credit report, and how to improve your credit score fast.