read data from a random access file created in vb6

I have some random access files created in vb6 and need to read the data out of them.
The problem is that I dont know the stucture of the recocrds inside the files.
I am new to VB but I have found some VB source which suggests these files can be
accessed without knowing the record stucture.
Can anybody help me how to resove that.

Thanks
Tamas