The cse.xml file, is a single search annotations file that combines all the annotations from different search engines in your account. It can be downloaded from the advanced tab of the CSE Control Panel - download 
# Example Annotations File
<?xml version="1.0" encoding="UTF-8" ?> <CustomSearchEngine id="7zog_atzphi" creator="017908501278066662245" keywords="Hinduism, Hindu, Siva, Muruga, Ganesha, Guru, Puja, karma, reincarnation, death, Sivalingam, Lingam" language="en" top_refinements="2147483647" sitesearch="true"> <Title>Himalayan Academy Search Engine</Title> <Description>The teachings of Saiva Siddhanta from Himalayan Academy.</Description> <Context> <Facet> <FacetItem> <Label name="taka" mode="FILTER" enable_for_facet_search="false"> <Rewrite>more:pagemap:document-pagetype:TakaBlog</Rewrite> </Label> <Title>TAKA</Title> </FacetItem>
The full cse.xml file can be viewed here
# Also referred to as:
To work on an XML file, download the XML specification from Advanced tab of the Control Panel. Don't start a file from scratch.
This is an abbreviation for Google's search annotation file, which can be downloaded from the advanced tab of the CSE Control Panel - download
# See also
see here for more information of the cse.xml structure.