concatenate data elements with line break in BI excel template

Summary:

<?concat(.//SUPP_NAME,';',.//SUPP_NAME2,';',.//SUPP_NAME3)?> It is concatenating with supp_name,supp_name2,supp_name3 columns separated by ',' .

In my case comma "," also displaying for null cases.

Hence i am trying to display with line breaks in the excel templates.

Below syntax didnt work:

<?concat(.//SUPP_NAME,chr(10),.//SUPP_NAME2,chr(10),.//SUPP_NAME3)?>

Please suggest

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