Is there any way that I can call  <apex:repeat>   from a command button (that sits within a <apex:pageBlockButtons> tag ) in order to store the output in an Excel spreadsheet? How do I associate the command button with this reapeat tag? Here is the code segment where I am having problems using the repeat tag. (variable lstwrapper is a List<Wrapper> amd wrapper is a class). Thanks much for your help and advice.:

<apex:pageBlock title="Subscription Issues">
    
    <apex:pageBlockButtons >
       <div style="display:inline; padding-left:10%; " id="SubscriptionSpacer1"></div>
            <apex:commandButton value="Get Subscriptions!" action="{!GetQuerySubscriptions}"  status="status"  />
           <apex:commandButton value="Decrement Subscriptions!" action="{!decrementAllIssues}" />
           <apex:commandButton value="Export to Excel" action="{!ExportToExcel}">            
               <apex:pageBlockTable>
                 <apex:repeat value="{!lstwrapper}" var="w">
                     <apex:outputText value="{!w.sid}" />
                     <apex:outputText value ="{!w.acctId}" />
                     <apex:outputText value="{!w.mAttention}"/>
                     <apex:outputText value="{!w.Street1}" />
                     <apex:outputText value="{!w.Street2}" />
                     <apex:outputText value="{!w.Street3}" />
                     <apex:outputText value="{!w.state}" />
                     <apex:outputText value="{!w.zip}" />
                     <apex:outputText value="{!w.name}" />
                     <apex:outputText value="{!w.productName}" />
                     <apex:outputText value="{!w.description}" />
                     <apex:outputText value="{!w.qty}" />
                     <apex:outputText value="{!wlrdate}" />
                     <apex:outputText value="{!w.numissues}" />
                     <apex:outputText value="{!w.lissuessent}" />
                  </apex:repeat>
               </apex:pageBlockTable>
         </apex:commandButton>
    </apex:pageBlockButtons>