Changing An Existing Orders Id

Hi Folks,

Looking for some guidance please!

I recently commissioned an addon which adds a prefix to our website order numbers.

We now have AAA2019 - So 3 letters, the current year then the actual order number used by cs-cart.

Before this addon I manually set the order ID to include the year.

Is there anyway I can manually change each existing order ID to not conflict with this new addon? As i will need to set the initial order to a lower number in effect.

Thanks in advance for any help!