如何在Excel中获取选定的工作表名称

I am trying to get names of the selected sheets in Excel. I have 4-5 worksheets in my excel file. User is supposed to select two of them and then my application scans specific columns and compare values. However I could not find a way in C# to get names of the worksheets when user selects more than one sheet. User can also delete these selected worksheets via the application. Any ideas?I am trying to get names of the selected sheets