Copy sheet from one workbook to another using NPOI in C#

问题:

I need to copy a sheet from one workbook to another. I am trying with the below code, but it is not working:

ISheet newSheet = wb.GetSheetAt(0).CopySheet("WeeklyReport"); string filePath = "billing_template2.xlsx"; XSSFWorkbook billingWorkbook; using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read)) {     billingWorkbook = new XSSFWorkbook(fs); }  billingWorkbook.Add(newSheet); 

where wb is the source workbook and billingWorkbook is my destination workbook.

Note: My destination workbook already had a sheet. I need to add the copied sheet after this one.

文章来源: Copy sheet from one workbook to another using NPOI in C#