Corrupt Database files.

I have some database files which I have created on Visual FoxPro. Yesterday I was accessing them but what I found there was very shocking! I???m getting this: the .dbf file header is corrupted. Now I have no idea how to deal with this. I think my files are corrupted or aren???t they? What should I do? I need a software program which can repair my files. I searched on Google but I found a huge list. I can???t use all of them. Has anyone ever faced this kind situation in the past? Please help me………!