create an .xls file in magento 1.7 programmatically -

i need create .xls file in magento , send client download. achieved pdf, , works fine .xls file can't seem create it.

how create .xls file in magento? can provide solution this?

here magento have free extension present. if want display .xls file format means install extension.. here link: magento extension procedure install magento extensionmagento extenstion installation if want know description link helps you. enter link description here