Read and complete the full issue template

string folder = "C:/CMF"; XLWorkbook workbook = new XLWorkbook(folder+"//Summary.xlsx"); IXLWorksheet worksheet = workbook.Worksheet(1); XLWorkbook newWorkbook = new XLWorkbook(); worksheet.CopyTo(newWorkbook,"Summary"); //Only copy sheet1 to new workbook and rename Summary, newWorkbook.SaveAs(folder+"/Report/Test.xlsx"); // And save this workbook as new file.

Do not randomly delete sections. They are here for a reason.
failure log:
`

error280880_01.xml

Did you test against the latest CI build?

• Yes
• No

If you answered No, please test with the latest development build first.

Version of ClosedXML
0.102.3 for latest revision.
e.g. 0.95.3

What is the current behavior?

Complete this.

What is the expected behavior or new feature?

Complete this.

Is this a regression from the previous version?

Regressions get higher priority. Test against the latest build of the previous minor version. For example, if you experience a problem on v0.95.3, check whether it the problem occurred in v0.94.2 too.

Reproducibility

This is an important section. Read it carefully. Failure to do so will cause a 'RTFM' comment.

Without a code sample, it is unlikely that your issue will get attention. Don't be lazy. Do the effort and assist the developers to reproduce your problem. Code samples should be minimal complete and verifiable. Sample spreadsheets should be attached whenever applicable. Remove sensitive information.

Code to reproduce problem:

public void Main()
{
    // Code standards:
    // - Fully runnable. I should be able to copy and paste this code into a 
    //   console application and run it without having to edit it much.
    // - Declare all your variables (this follows from the previous point)
    // - The code should be a minimal code sample to illustrate issue. The code 
    //   samples on the wiki are good examples of the terseness that I want. Don't
    //   post your full application.
}

• I attached a sample spreadsheet. (You can drag files on to this issue)