When Keynote application fails to open PPT files on Mac OS X, users experience SF compatibility error on Mac. In such situation whenever users tries to open PPT files the Keynote application freezes unexpectedly and may get corrupted as well. However, this type of critical error is mostly arises due to corruption in PPT files which can be caused due to any possible reason such as application malfunctioning, abrupt system shutdown, file system corruption, hard drive crash and many others. In order to get rid of SF compatibility error you will need to resolve the corruption issue completely.
You can restore you corrupted PPT files using a valid back copy. In case if there is no backup available then you can also take the help of a reliable as well as sophisticated third party tool. iWork Data Recovery Software would be the best option for you. It is very reliable, efficient, and user friendly tool to rescue or repair any lost, inaccessible and even severely corrupted documents. It is very safe and restores all rescued items on users selected location. It also gives the preview of all recovered files. Hence, it is recommended to repair all your corrupt or inaccessible PPT documents easily after SF compatibility error.