[rt-users] how to extract open tickets from rt 3.8.2 to 4.0.8 installation

[testwreq wreq]

We have a new installation on ubuntu of RT 4.0.8; Our current RT 3.8.2 is
on CentOS.

Is there a way to extract all open tickets from the current system and
export them into the new system?

Thanks much!
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