MS Office is a collection of software applications used in offices and schools that includes MS Word for writing documents, MS Excel for working with spreadsheets and calculations, and MS PowerPoint for presentations. MS Excel is a program that allows users to organize and calculate data in a spreadsheet. It was first released in 1985 and various versions have been included in Microsoft Office releases over the years. A spreadsheet electronically stores different types of data and uses comparison operators like greater than, less than, equal to, and not equal to in formulas and calculations.