TOS Caravan can be used in OpenOffice Calc, but requires the Regular Expressions to be activated!
To activate the Regular Expressions in OO, go to Tools -> Options -> OpenOffice Calc -> Calculate, and checkmark the option "Enable regular expressions in formulas". Here is an image of this option in OO 4.1.1.
TOS Caravan is now Available! A preview section was also added - Check it out!