@vishweshpatil The FileSelect function will not work with WebUI apps.
Replace FileSelect with FileExists instead and your procedure should work.
Also, make sure that you are opening the correct workbook in the procedure pr_readInputMasterDataFromExcel.
You are checking for the file ``excelFileName`` but later on opening the file ``excelFileNameMaster``.
In the upload widget procedure, you are copying the file to central storage with path ``sp_PublicDataExchangeFileName``. I think you should be checking the existance of this file and then open it to read data from it.
if not FileExists(sp_PublicDataExchangeFileName) then
return;
endif;
axll::closeallworkbooks;
axll::openworkbook(sp_PublicDataExchangeFileName);