Thanks for your posting and using Aspose.Cells for .NET.
You can use Range.Copy() method for your needs. Please see the following code. It copies source range into destination range of another worksheet. I have also attached the source and destination workbooks for your reference.
C#
Workbook workbook = new Workbook(“source.xlsx”);
Worksheet srcSheet = workbook.Worksheets[0];
Worksheet destSheet = workbook.Worksheets[1];
//Source range to be copied
Range sourceRange = srcSheet.Cells.CreateRange(“A1:E5”);
//Destination range
Range destRange = destSheet.Cells.CreateRange(“F8:J12”);
It is good to know that your issue is resolved with the given code sample. If you encounter any other issue, please feel free to post on this forum. We will be glad to help you further.