js读取本地Excel

<html> 
<head>
<TITLE> New Document </TITLE>
  <meta charset="utf-8">
<script> 
function ReadExcel() 
{ 
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=2;i<46;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+ 
" "+oSheet.Cells(i,3).value+ 
" "+oSheet.Cells(i,4).value+ 
" "+oSheet.Cells(i,5).value+ 
" "+oSheet.Cells(i,6).value+"
"); 
} 
}catch(e) 
{ 
document.all.txtArea.value = tempStr; 
} 
document.all.txtArea.value = tempStr; 
oXL.Quit(); 
CollectGarbage(); 
} 
</script> 
</head>
<input type="file" id="upfile" /><input type="button" onclick="ReadExcel();" value="read"> 
<br> 
<textarea id="txtArea" cols=50 rows=10></textarea> 
</html>

原理是利用了IE关于Excel的ActiveX插件，所以此功能只支持IE系列浏览器

ActiveX是微软开发的只支持IE内核浏览器非IE内核的需要通过插件去调用ActiveX