Calendar file size

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kaffelatte - 01 May 2006 16:36 GMT

A client regularly exports his calendar every week. After 4 weeks, he
noticed his file size went from 55 Meg down to 29 Meg without deleting any
appointments or attachments. It appears all the data is there, but we would
like to know why the file size became smaller? How does Windows XP or
Outlook 2003 calculate the file size? Could there be something wrong with
the way his system is calculating the file size?

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kaffelatte

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Vince Averello [MVP-Outlook] - 01 May 2006 16:48 GMT

Could AutoArchiving have removed older items and background compaction
packed that empty space out?

>A client regularly exports his calendar every week. After 4 weeks, he
> noticed his file size went from 55 Meg down to 29 Meg without deleting any
[quoted text clipped - 3 lines]
> Outlook 2003 calculate the file size? Could there be something wrong with
> the way his system is calculating the file size?

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kaffelatte - 01 May 2006 17:05 GMT

To our knowledge autoarchiving is not turned on and he goes through the same
steps each week. He's fairly technical, so I don't believe he's done
anything differently for the past month.

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kaffelatte

> Could AutoArchiving have removed older items and background compaction
> packed that empty space out?
[quoted text clipped - 6 lines]
> > Outlook 2003 calculate the file size? Could there be something wrong with
> > the way his system is calculating the file size?

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kaffelatte - 01 May 2006 18:29 GMT

I just spoke with the client to confirm that auto archiving is not turned on
and he informed me that when he exported the calendar this past Friday, it is
now back to the 59 Meg file size.

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kaffelatte

> To our knowledge autoarchiving is not turned on and he goes through the same
> steps each week. He's fairly technical, so I don't believe he's done
[quoted text clipped - 10 lines]
> > > Outlook 2003 calculate the file size? Could there be something wrong with
> > > the way his system is calculating the file size?

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Brian Tillman - 02 May 2006 00:11 GMT

> I just spoke with the client to confirm that auto archiving is not
> turned on and he informed me that when he exported the calendar this
> past Friday, it is now back to the 59 Meg file size.

This begs the question: why does he export?

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Brian Tillman

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kaffelatte - 02 May 2006 14:25 GMT

Even though I've shown him how to copy his calendar, he prefers to export it.
When we copied his calendar into a new pst we also noticed a difference in
the file size of the Calendar.pst versus the size of the folder. I just
replicated the process on my system and the file folder for my calendar is
142K while the calendar.pst file is 1009K. Shouldn't the file sizes be much
closer?

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kaffelatte

> > I just spoke with the client to confirm that auto archiving is not
> > turned on and he informed me that when he exported the calendar this
> > past Friday, it is now back to the 59 Meg file size.
>
> This begs the question: why does he export?

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Brian Tillman - 02 May 2006 16:34 GMT

> Even though I've shown him how to copy his calendar, he prefers to
> export it. When we copied his calendar into a new pst we also noticed
> a difference in the file size of the Calendar.pst versus the size of
> the folder. I just replicated the process on my system and the file
> folder for my calendar is 142K while the calendar.pst file is 1009K.
> Shouldn't the file sizes be much closer?

There seems to be only a marginal correspondence betwen the size of a folder
and a PST containing that folder, other than that the PST itself will always
be larger than the folder(s) it contains. There is more to a PST than just
the data you can see.

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Brian Tillman

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