paramquery-grid-export-excel-block-leading-zeros

var showCol=this.option("colModel").filter(x=> !x.hidden);
var tmpPdata=JSON.stringify(this.pdata);
this.pdata.map(x=> {  
    showCol.map(y=>{ 
	if(!isNaN(parseInt(x[y.dataIndx]))){
	    x[y.dataIndx]=" "+x[y.dataIndx];
	} 
    }) 
    return x;  
});
exportData.call(this, 'xlsx');  
this.pdata=JSON.parse(tmpPdata);
delete tmpPdata;