Who knows what exactly I read desired formats? or what else there are metho

I’ve database – three folders with a bunch of file formats: DBX DBI and DCX DBM file. Nothing more. What is open – no idea. Tried to Visual FoxPro, but it needs format files DBC. DBXtract tried to use it but what that something strange and incomprehensible to use error produces different …. Maybe because I have Vista x64 and the program just under another bit … I don’t know what and how to access the database … All the files in order to weigh the amount of gigabytes. Who knows what exactly I read desired formats? or what else there are methods to open the entire contents?