Hyperlink details to be uploaded via Import manager

Hello Everyone

System----SRM MDM 2.0,MDM 5.5

We have a requirement of uploading the Hyperlink (A URL -clicking on which takes the catalog end user to a new browser and opens a website.) .This link is to be uploaded along with 40 odd fields.

When i have entered teh data manuall into

URL -- Google

URL Description- -http;//www.google.com

MIME type - Blank

Hyperlink Type -Link

After this i am able to see the desired outcome in the Catalog.

When I am trying to upload the following details through a spread sheet. I am getting only Hyperlink type as the destination field.I am not able to see URL and URL Descrilption and MIME type for to do a map.

But how do i import the rest of the fields through an upload excel/access field.

What options do i have ,What changes can i make in the cosole to make them available in Import manager while mapping.

Cheers

Sarath