1. when using Open, the data type will be no change
dt = Open( "$SAMPLE_DATA/Big Class.jmp");
2. But when using Multiple File Import, all column data type change to character type, how to keep the original data type for all columns?
path=Get Path Variable( "SAMPLE_DATA" );
Files=Multiple File Import
(
<<Set Folder(path),
<<Set Name Filter ("Big*.jmp"),
<<Set Name Enable(1)
)<< Import Data();