Hi,
Using Aspose Cells for Java, version 25.9.
Sample code:
Workbook workbook = new Workbook("input.xlsx");
Worksheet Worksheet = workbook.getWorksheets().get("IT Projections");
Cells cells = Worksheet.getCells();
cel…...xlsx"); Worksheet worksheet = workbook.getWorksheets()...Projections"); Cells cells = worksheet.getCells(); cells.insertColumns(3...