js 解析文件excel文件

<script> 
function readThis(){ 
var tempStr = ""; 
var filePath= document.all.upfile.value; 
var oXL = new ActiveXObject("Excel.application"); 
var oWB = oXL.Workbooks.open(filePath); 
oWB.worksheets(1).select(); 
var oSheet = oWB.ActiveSheet; 
try{ 
for(var i=3;i<654;i++){ 
//if(oSheet.Cells(i,2).value =="null" || oSheet.Cells(i,3).value =="null" ) 
//break; 
//var a = oSheet.Cells(i,2).value.toString()=="undefined"?"":oSheet.Cells(i,2).value; 
tempStr+=(oSheet.Cells(i,2).value.replace(/\s/g,'')+"="+oSheet.Cells(i,3).value.replace(/\s/g,'')+"\n"); 


catch(e){ 
//alert(e); 
document.all.txtArea.value =tempStr; 

document.all.txtArea.value =tempStr; oXL.Quit(); 
CollectGarbage(); 

</script> 
<html> 
<input type="file" id="upfile" /> 
<input type="button" onclick="readThis();" value="读取"><br> 
<textarea id="txtArea" cols=500 rows=100></textarea> 
</html>

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