I'm trying to create a report with RDLC and I can't change the sheet names in excel. When i'm trying to change it from RDLC properties (by grouping) i have an error of invalid RDLC file (I read over the internet and discovered that this option doesn't work with RDLC). If I save the file (C:/inetpub/wwwroot/...) and then I try to open it with Interop.Excel it crashes on opening (this).
I don't want to create any other folders or give permissions to other folders. What other options I have?