on this page in the release notes of jqgrid 3.7.2, i see:
Fix export url in export to excel method
but i dont see any other documention abou
See Calling Excel Export from a custom button (javascript):
Once again - the open source lib does not contain a method to make a excel file, buyt only a method to call a already constructed one.
Please download the jqGrid PHP wrapper from here: http://www.trirand.net/download.aspx
Read the install instructions here : http://www.trirand.net/documentation/php/_2v20f82ru.htm
and and do a demo described here: http://www.trirand.net/documentation/php/_2v212tis2.htm
in order to have the build in export to excel