def openFile(self):
s = QFileDialog.getOpenFileName(self,"Open file dialog","/","Excel files(*.xls)")
if not s == "":
if self.sender().text() == "Select Source":
self.sourcePathEdit.setText(str(s))
self.sourceSheetBox.clear()
sourceExcel = ExcelApp(s,"")
self.sourceSheetBox.addItems(sourceExcel.getSheetsName())
elif self.sender().text() == "Select Target":
self.targetPathEdit.setText(str(s))
self.targetSheetBox.clear()
targetExcel = ExcelApp(s,"")
self.targetSheetBox.addItems(targetExcel.getSheetsName())
