Software Solutionswhat application is used to display a .flip or .flipchart file?

Hi Joe, 

Our ActivInspire software can be downloaded here
If the school uses the Promethean interactive Whiteboards, you will be able to upgrade to the professional version for free using a board hardware serial number. 
The limited free personal edition of the software can be used without a serial number and is sufficient to open *Flipchart files. 
Please note that Mac OS X 10.10 (Yosemite) is not yet supported for ActivInspire though. 

Please don’t hesitate to call our Tech Support during office hours if you need someone to talk you through the upgrade process. 
I have created a case reference number to quote that will have your details:  00460206