How to add 2 columns in group by in Excel template

Summary:

Need to add 2 columns in Group by expression in EXCEL template

Content (please ensure you mask any confidential information):

below condition is working for 1 column

<xsl:for-each-group select=".//G_2" group-by="./GEOGRAPHY">

same way i tried with 2 columns but it is not working, provide if any one achieved these condition for 2 columns

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

<xsl:for-each-group select=".//G_2" group-by="./GEOGRAPHY"> —> working

<xsl:for-each-group select=".//G_2" group-by="./GEOGRAPHY,./Type"> —> NOT WORKING