You do not need to open and save all your existing .vboard files to .olf files.
myViewBoard Whiteboard for Windows will be able to open and import both file formats.
However, .olf (Open Learning Format) will be the main stream file format cross all myViewBoard products in the future. Currently, myViewBoard Whiteboard for Windows and Whiteboard for Android support .olf files. myViewBoard Classroom will also support .olf in the future.
You can delete any .vboard file, after you save it into .olf file.