Once you are done with analyzing and cleaning up, you can switch back to the Day/Week/Month view via Press the added “Size” column to sort by size.Set the “Select available fields from:” to All Appointment fields.View-> Current View-> View Settings…-> Columns… Set your Calendar folder tot the List View You can customize your Calendar View as described in the following way Adding the Size Columns to the Calendar’s List View The default “Day/Week/Month view is not very helpful to analyze this indeed.Ī good approach would be to change your Calendar view to the List view, add the Size column and then click on the Size column to sort by size. Now I'm looking for a way to locate the largest items and clean up their attachments. This is very well possible since I often store attachments with my Calendar items or receive Meeting invitations with attachments. Looking at the folder size of my Calendar, I noticed that it takes up a lot of space.