Microsoft Office, whether you go for the company's Office 365, Office Online or standard desktop apps offering comprises Word (for word processing), Excel (spreadsheets) and PowerPoint (slide show presentation) – with a few more recent additions, including Access (database), Outlook (email) and OneNote (note-taking). Microsoft's Office suite has gone through a great many iterations and changes since it originally launched in 1990 and although it's still a favourite of many (not even just Windows users either), it can be difficult to decide which type of Office subscription to go for.