[xsl] XML with Default Namespace

I'm stuck, I'm trying to write XPATH against an Excel worksheet
converted to XML, I'm actually trying to transform it into clean and
nice xml, but darnit, the default namespace is throwing me off!

I'm getting an error from XpathMania which says
"Document has a default namespace"

When I add the default namespace, then my xpath queries no longer work.

So the XML looks like this:

<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
 xmlns:o="urn:schemas-microsoft-com:office:office"
 xmlns:x="urn:schemas-microsoft-com:office:excel"
 xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
 xmlns:html="http://www.w3.org/TR/REC-html40">
 <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
  <Author>kstubsj</Author>
  <LastAuthor>Network Services</LastAuthor>
  <LastPrinted>2005-07-18T14:28:19Z</LastPrinted>
  <Created>2004-09-15T18:47:44Z</Created>
  <LastSaved>2007-02-06T18:54:17Z</LastSaved>
  <Company>ADE</Company>
  <Version>11.8132</Version>
 </DocumentProperties>
 <ExcelWorkbook xmlns="urn:schemas-microsoft-com:office:excel">
  <WindowHeight>11220</WindowHeight>
  <WindowWidth>14865</WindowWidth>
  <WindowTopX>1440</WindowTopX>
  <WindowTopY>330</WindowTopY>
  <ActiveSheet>1</ActiveSheet>
  <ProtectStructure>False</ProtectStructure>
  <ProtectWindows>False</ProtectWindows>
 </ExcelWorkbook>
 <Styles>
  <Style ss:ID="Default" ss:Name="Normal">
   <Alignment ss:Vertical="Bottom"/>
   <Borders/>
   <Font/>
   <Interior/>
   <NumberFormat/>
   <Protection/>
  </Style>
  <Style ss:ID="s21" ss:Name="Hyperlink">
   <Font ss:Color="#FFFFFF"/>
  </Style>
  <Style ss:ID="s22" ss:Name="migrated_on">
   <Alignment ss:Horizontal="Center" ss:Vertical="Top" ss:Rotate="90"/>
   <Borders>
    <Border ss:Position="Bottom" ss:LineStyle="Continuous" ss:Weight="1"
     ss:Color="#C0C0C0"/>
    <Border ss:Position="Left" ss:LineStyle="Continuous" ss:Weight="1"
     ss:Color="#C0C0C0"/>
    <Border ss:Position="Right" ss:LineStyle="Continuous" ss:Weight="1"
     ss:Color="#C0C0C0"/>
    <Border ss:Position="Top" ss:LineStyle="Continuous" ss:Weight="1"
     ss:Color="#C0C0C0"/>
   </Borders>
   <Font x:Family="Swiss" ss:Size="8"/>
   <Interior ss:Color="#FFFFCC" ss:Pattern="Solid"/>
   <NumberFormat ss:Format="[$-409]m/d/yy\ h:mm\ AM/PM;@"/>
   <Protection/>
  </Style>

.... [cut]