How to Add Sortable headers in Excel file using C#

[nandikantig]

Hai,

I have a C# application from which I add a new column to an existing Excel file. This excel file already has sortable headers that also freeze.

What I am having difficulty with is trying to add both these features, the Sorting property and freeze pane property to new column that I added in the Excel file, .

Any help, ideas will be appreciated.

Thanks
Nan