XML to Access Database - help

Here is what I have: a xml file (too large to open in most applications 226,446 KB);
I have a folder with a bunch of xml schemas which describe my file.

Since my xml file is quite large I'm trying to take the information contained in it and
put it in an Access Database.

I have been trying to do this in VB.net and right now am spinning my wheels. My
problem is that I really don't know how to start this project. I've read tons on
Datasets, schemas ect but am getting no where fast

Here is my thought process: If I can produce a typed Dataset and read in my xml file. Then all I have to do is write the dataset to an Access DB.
I've been lately trying to produce typed Datasets from the schemas but when I follow the basic instructions to produce a dataset I get errors:
Custom tool error: Unable to convert input xml file content to a DataSet. Type 'bnType' is not declared.
I do have a schema in my folder which seems to contain the information describing what bnType should
be. But I don't know how to make my schemas "talk" to each other.

Heck I don't even know if what I'm trying to do is the right way to approach this problem!

Any help would be great!

Thanks