PST files

[Zorian]

Hello,
I have been backing up my laptop Outlook info to PST files each month
and I have about 7 of these PST files and erasing some content like
email right after each backup so as to keep my main Outlook datafile
small for better performance. However, I just learned to understand
how AutoArchive works and realize the inconvenience in having so many
different files that overlap in data but do have distinct emails and
contacts. So I would now like to combine all of them into one big
file but I wonder if there is an automated and preferred way to do
this and so that this combination/conversion doesn't copy any
duplicates and only combines one version of each email or contact.

Any suggestions ?
Thank you,
Zorian

 

[Henry Chang]

I think you can use the import function of Outlook. When you import those
files, Outlook will give you an option to choose whether you want to import
duplicated items or not.