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3. All the excel files must have the same sheet name or number to be processed, otherwise run time exception will be thrown and processing will be terminated.
4. Only if the user does not want to process all the columns then only the columns present in output schema will be presented in output records emitted by Excel input reader plugin.column list input will be included in output records. String type will be treated as default
output data type for all those columns which are not available in output schema input,