ExcelEngine template marker's copymerges in 3rd column

Question

I'm using template marker and it only works with "insert". But insert also creates a new row.

I have many columns copying styles merges from above row. It works good for first column but second columns also creates a new row.

So how do I copymerges from top row without inserting a new row 2 times.

Shamini Kiruba Sobers · Accepted Answer

Hi John, 

Greetings from Syncfusion. 

You can use copymerges only with insert argument. But we are unable to reproduce any issues like new rows are inserted twice. Kindly look into the following KB, which illustrates copymerges operation with an example. 
https://www.syncfusion.com/kb/8501/how-to-use-insert-argument-in-template-markers-using-xlsio 

You can also refer the following blog that contains complete information about exporting data to a predefined Excel template using template markers. 
https://www.syncfusion.com/blogs/post/export-data-to-a-predefined-excel-template-in-c.aspx 

If you are still facing any issues after referring to the KB document, kindly modify the sample in the KB to reproduce the issue and share us the modified sample which would be helpful for us to investigate the issue. 

Regards, 
Shamini