ALV report download

I have alv Report having 45 fields, i am using FM : REUSE_ALV_GRID_DISPLAY_LVC.

When I want to down load into excel, its going to be dumped due to larger width of the report.I tried in FM : REUSE_ALV_GRID_DISPLAY also but same dump is happening.

Is there any solution to do this ?

If no, I want a Button on the alv report,

after pressing the Button, It should ask for File path where the excel going to be douwnloaded.

Thanks

Kumar N