No, you do not need Microsoft Office in order to use ScalIT. For your email, calendaring, and contacts, you may use ScalIT with its provided web interface, or you may choose to use it with Outlook, Thunderbird, Apple Mac Mail, etc. ScalIT’s file and document management software works with its own web interface to create company intranet sites and pages. It is also designed to work with imported documents, spreadsheets, images, etc. It recognizes documents made in Microsoft Office formats (i.e. .doc, .xls, .ppt, etc.), as well as those made conforming to the Open Document Format (supported by OpenOffice.org, LibreOffice, newer versions of Microsoft Office, Star Office, and many other applications). The ScalIT file and document management system also recognizes .pdf files, most pictures files, and many other file types. ScalIT’s Contact Management applications is fully web based, but also works with documents made in other applications. ScalIT Instant Messenger works with the provided web-based application, or with other popular chatting applications, such as iChat or Pidgin.