Thats my way. clear table(&Old table) clear table(&New table) clear list(%Temp) create table from file(".yourDataFile", &Old table) save to file(".temp", &Old table) clear table(&Old table) add list to list(%Temp, $list from file(".temp"), "Delete", "Global") save to file(".temp", %Temp) clear list(%Temp) create table from file(".temp", &New table) Have luck