Aspose::Cells::Startup();

//For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-C

//Path of input
U16String dirPath(u"");

//Path of output
U16String outPath(u"");

//Path of input excel file
U16String sampleCopyingRowsAndColumns = dirPath + u"sampleCopyingRowsAndColumns.xlsx";

//Path of output excel file
U16String outputCopyingRowsAndColumns = outPath + u"outputCopyingRowsAndColumns.xlsx";

//Read input excel file
Workbook workbook(sampleCopyingRowsAndColumns);

//Accessing the first worksheet in the Excel file
Worksheet worksheet = workbook.GetWorksheets().Get(0);

//Copy the third column to eighth column
worksheet.GetCells().CopyColumn(worksheet.GetCells(), 2, 7);

//Save the Excel file.
workbook.Save(outputCopyingRowsAndColumns);

Aspose::Cells::Cleanup();