MyPhoneExplorer erased every appointment in my calendar

[GD61]

Hello,
I'm using MyPhoneExplorer to synchronize Outlook 2010 and my calendar on my SAMSUNG Galaxy S3.
But tonight during the sync, MyPhoneExplorer deleted on my phone, every appointments older than this week. So I lost the history of several hundreds of professional appointements during the past years.
Why MPE did that ?
How can I copy again the appointments from my Outlook on my PC, to the Samsung calendar?

Thanks for help

Gérard

[dvhttn]

MPE > File > Settings > Sync > Outlook 2010 Calendar - Advanced > 'Time Period' perhaps?

[GD61]

That worked !
Dave, Thanks a lot !