[ic] Modular options using options tab of the template.xls

[interchange-users@interchange.redhat.com (Dave Turk)]

I am trying to import my spreadsheet into the catalog and would like to
setup a modular options
on the options tab of the template.xls spread sheet. I would like to replace
the sku # with its own when
the option is selected but if this is not possible without coding thats OK.
Example

Product   Nutrition shake plain     sku = 0024
option flavor = vanilla                   sku = 0025
option flavor = chocolate              sku = 0026
widget = select

Can someone help me with what to put in the following columns in the options
tab of the template.xls to make this work.
I just don't understand how to make this work.
code    sku    o_enable     o_matrix     o_modular    o_group    o_value
o_label   o_widget     o_master     price     wholesale      differential
description

weight     volume      mv_shipmode      o_exclude      o_include    o_header
o_footer    o_height     o_width

Thanks very much
Dave Turk