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.

Use Microsoft Excel to calculate EBITDA (earnings before interest, tax, depreciation, and amortization) profit margin.

Learn how to change the default file format for saves in Word, Excel, and PowerPoint, so that you do not need to change it every time.

How to calculate return on investment (ROI), the money an investment made relative to its cost, in Microsoft Excel.

Molasses is a thick, syrupy sweetener that many believe to be more healthful than sugar. This article looks at the types, benefits, and risks of molasses.