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We create custom table for inserting datas into the mtl_system_items_iterface table. I create an excel sheet and it has same columns with “xx_item_create” table. Then for inserting data into the XX_ITEM_CREATE table, I use the program “Toad“. The path is Database > Import > Import Table Data. You can insert the datas from excel to database table using this Import Table Data function. (Don’t use this function for the standard oracle tables!!!)