class ZCL_COMMON_CLASS definition public create public . public section. types TY_ROW type STRING_TABLE . types: TY_T_ROW type STANDARD TABLE OF TY_ROW with DEFAULT KEY . methods UPLOAD_EXCEL_TO_ITAB returning value(RR_DATA) type ref to DATA . protected section. private section. ENDCLASS. CLASS ZCL_COMMON_CLASS IMPLEMENTATION. method UPLOAD_EXCEL_TO_ITAB. endmethod. ENDCLASS.