Mailbox Full! Clean Large Calendar in Outlook 2010

I often met a Outlook error that my mail box is full, then I will start to clean my email inbox. But I today I suddenly found that the root cause is that my calendar took too much space!

To view the "Mailbox Size", in Outlook 2010, you could do like this:
1, File -> Info -> Cleanup Tools, choose "Mailbox Cleanup..."
2, In the popup "Mailbox Cleanup" window, click "View Mailbox Size".

If you found your email box frequently go out of space, you might can take a look at the calendar space.

OK, the next question is how to clean the Calendar? Here is the way to do it in Outlook 2010

1, Click Calendar in Outlook, in the View tab, Click Change View menu item
2, Choose the List view

3, Add a column "Size", so you can sort on it. The step is:
1) Right click the header, Click "View Settings", then "Columns...",

2) In the popup dialog of "Show Columns",  select "All Appointment fields" in the drop down list.
3) In the list of "Available columns", go down to the end and choose "Size"

4, Now you can sort on Size column and delete the big appointment in Calendar!
My outlook lives a happy life ever...

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