Transferring MXF's to Final Cut Pro 6?

Here is a question for the professionals?

How can I import MXF files to Final Cut Pro? I have 3 hard drives of footages for a film I am editing and while some of the files are .mov files, it appears to me most of them are .mxf files, which I cannot open. Is there a way I can import .mxf files into Final Cut Pro for editing without downloading special software?

Thank you in advance.

Matthew