OWC Excel/Office Pivot Table - Object tag - Server-side data connection?

I have two HTM files, each for displaying an Office/Excel Pivot Table on the web (using OWC).  One was created with FrontPage (insert>component>pivot table, property toolbox>data source...) and one from Excel (select pivot table, save as web page...).

The Excel exporting process produced also a couple of XML files named "filelist.xml" and "...cachedata....xml" containing all data, referenced below.  The core object tag looks like this (long XML data replaced with '...'):

<object
 id="Group_Demand_Report_Chicago_29815_PivotTable"
 classid="CLSID:0002E552-0000-0000-C000-000000000046">
 <param name=XMLData
 value="&lt;!--[if gte mso 9]&gt;&lt;xml xmlns:o=&quot;urn:schemas-microsoft-com:office:office&quot;&#13;&#10; xmlns:x=&quot;urn:schemas-microsoft-com:office:excel&quot;&#13;&#10;
 ...
 &lt;CacheFile HRef=&quot;pt_files/Group_29815_cachedata001.xml&quot;/&gt;&#13;&#10;
 ...
 &lt;/PTFormat&gt;&#13;&#10; &lt;/PivotTable&gt;&#13;&#10;&lt;/xml&gt;&lt;![endif]--&gt;">
</object>

The FrontPage generation process asked for various data source information, from which I could choose either a data source control, or a connection with command text.  I chose the latter and was forced to pick from a list of installed OLE DB providers.  I picked the Jet provider, put my data in an Access db, typed in an SQL statement got the data connected to the object.  The FrontPage-generated object tag looks like this, and includes no other related files:

<object classid="CLSID:0002E552-0000-0000-C000-000000000046" id="PivotTable1" codebase="file:msowc.cab" width="518" height="205">
  <param name="XMLData" value="&lt;xml xmlns:x=&quot;urn:schemas-microsoft-com:office:excel&quot;&gt;
  &lt;x:PivotTable&gt;
  &lt;x:OWCVersion&gt;9.0.0.3821&lt;/x:OWCVersion&gt;
  &lt;x:CacheDetails/&gt;
  &lt;x:ConnectionString&gt;Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\test.mdb;Persist Security Info=False;Jet OLEDB:Database Password=&amp;quot;&amp;quot;&lt;/x:ConnectionString&gt;
  &lt;x:CommandText&gt;select * from test;&lt;/x:CommandText&gt;
  &lt;x:Name&gt;PivotTable&lt;/x:Name&gt;
  &lt;x:DataAxisEmpty/&gt;
  &lt;x:PivotField&gt;
  &lt;x:Name&gt;ID&lt;/x:Name&gt;
  &lt;x:DataType&gt;Number&lt;/x:DataType&gt;
  ...
  &lt;/xml&gt;">
</object>

Here is my problem.  The Excel-generated object transmits the entire cachedata.xml file to the client upon loading the object.  This is undesirable because the file is too large (can be hundreds of megs).  The FrontPage-generated object, while asking me for connection details upon preparation server-side, stores the connection properties in the object tag, and then looks for this connection client-side, rather than asking the server for data as needed.

I need this object to request data from the server, but not try to download everything all at once as soon as the object is loaded.  What I need to know is whether this OWC is built to handle such a scenario -- can I set this up so that user interaction with the object dictates which data is requested from the server?  Or must the object contain all data client-side, and if so, can it be transmitted in a better way than downloading hundreds of megs of XML data?  If there's a way to code this object tag so that it maintains a connection with the server, reducing bandwidth load at startup, I would like to know about it.