.dat file? Watch how easy it is to use Corel WordPerfect Office to open a .dat file.
http://apps.corel.com/lp/download/wpox5-dat/ Free trial of WordPerfect Office. The best way to open a .DAT file is to use the program that created it. But if you’re not sure which program did, try WordPerfect Office X5.
See step by step, a couple of different ways to open a .dat file using WordPerfect Office as well as how to save it as a more sharable file extension.