Hi Ana,
You can use the copy command. Please try the following script:
// suppose the name of original worksheet is Data1,
// name of the new worksheet is Data2.
// 3 columns are column A, B and C.
for(ii=1; ii<=30; ii++)
{
copy -a Data1_A Data2_A;
copy -a Data1_B Data2_B;
copy -a Data1_C Data2_C;
}
Penn