The slide presentations in ABC are currently in PowerPoint (.ppt) format. OpenOffice Impress does support importing .ppt files, but as we haven't tested importing them in programs other than PowerPoint, you will have to use open-source software at your own risk.
The PowerPoint files were designed using specific fonts, and look best when used with them installed on your machine. We have provided them here for your convenience: PowerPoint Fonts.zip
Customer support service by UserEcho