[R] Convert "RDX" and "RDB" to ASCII format?

[Henri Mone]

Dear R users and experts,

I need to modify an exisiting R function from a package. The function/
variable is inside a namespace and I have problems accessing it.
I only need to get access to to corresponding sourcecode. I localised
the "RDX" and "RDB" files. But it seems to be a binary format.
How can I convert it to an ASCII format to open  and extract the code
from a text editio?

Thanks
Henri