Hello I have the following problem.
Well, I have tested your scenario using the code (mentioned below) using a simple template csv file having the string “Köln” in it with the new version v4.8.2: http://www.aspose.com/community/files/51/.net-components/aspose.cells-for-.net/entry215207.aspx , it works absolutely fine.
Which version of the product you are using? kindly try the new version v4.8.2 and let us know if you still find the issue.
If you still find the issue, kindly post your template excel file with sample code here, we will check it soon.
Workbook workbook = new Workbook();
Still not working.