Problem in file extension for webi.

[sjs2]

Hi,
when i download the web file it shows the .csv
and i changed to .xls but after download when i open the files Excel file it shows all the fields in one cell..

Can any one suggest?

b'coz my user has some macro's it seems and they don't want .csv by default they want only .xls and they r not ready to changes the extension by manual..
and also they r not ready to open the file and save as .csv.

in first click it self they want to click on save as

Thanks fo help in advance