RDLC exporting to excel retain data type like Currency.

I want to show Currency or Date in number format, while exporting RDLC report to Excel. The column data type always shows General.

When I use particular format like "C" for currency in RDLC report. It shows correct currency format($40,00.00) but it shows custom in number format in Excel sheet.

Used these techniques but no result.

http://www.dreamincode.net/forums/blog/1693/entry-3925-maintain-datatype-when-exporting-rdlc-report-to-excel/

Kindly give me some links to help me out.