Over time, Outlook data files can easily grow to be several gigs in size - especially if they also store large file attachments with their messages.
Remember, your Outlook data file includes every Email currently in your ' Inbox', every message filed to a mail ' folder', and even every message you have sitting in your ' sent messages' view.
Over time, as you save more and more information within Outlook, your PST and OST data files can grow to be quite large. Microsoft Outlook® data includes all your Emails, Tasks, Appointments, Contacts, and Notes, as well as any of their associated file attachments. Luckily, there is a simple way to compact unused space in your Outlook PST files which will reduce their size and increase their speed. Microsoft Outlook® data files can grow quite large over time.
