Entry-level skills for most office work include the ability to open, create, save and modify documents in Word, send and receive email in Outlook and create spreadsheets in Excel. Through knowledge on how to change the font, the margins, insert or delete pages and use the built-in spell checker and grammar check. Many common tasks in the daily operation of an office go beyond basic MS Office skills, such as using Mail Merge in Word to personalize business letters for an entire mailing list or creating posters and other graphics-heavy documents in Publisher. Creating slideshows in PowerPoint is an intermediate-level task often used in the office.