I can't reproduce what I think you're describing, though you're not the
first person to have had the problem.
The spreadsheet import/link wizard will normally only list range names
that refer directly to fixed, contiguous ranges on a worksheet, i.e.
ones whose RefersTo property is a simple range reference such as
"=Sheet1!A1:C5"
As far as I can make out, these are the same names that are listed in
Excel's Edit|Goto dialog. Do your names show up there? If not, there may
be a problem with the way you created them: I find it hard to remember
the subtleties of sheet-level names vs workbook-level names, and it's
also easy to get a RefersTo property like this, which doesn't work:
="Sheet1!A1:C5"