File conversion (.ods to .xls)

Question

I have to convert a file from .ods format to .xls format.

I select an .ods file using openfiledialog(), then get the file like emp.ods.

Now I want to copy this file to another location in .xls file format, to change the extension, like filename in savefiledialog().

How can I set a Save-As type such as Microsoft Excel 97-2003 worksheet in VB.NET?