You can add currency symbol to your numbers in excel.
Open Number Format dialog box using Format Cells option or just press Ctrl+1
1. Click Accounting
2. Choose currency symbol from drop down
In case you do not get your currency symbol from drop down, add your symbol using custom formating option in the same dialogbox
1. Click Custom
2. Type - "Rs "#,##0_);[Red]("Rs "#,##0)
I use "Rs " to show numbers in Indian Currency. You can replace it with your symblol.