What format can I use when making templates? Mohamed Bahri June 10, 2015 15:12 Updated Follow Google Sheets and Google Docs can be used as templates for the Data Merge add-on. On a Google spreadsheet: On Google doc: Related articles How can I reduce spacing in my document and mail merge email? Can I use any letter, number and character as a tag? Where can I find a generated document if I don't specify any destination folder? Comments 0 comments Article is closed for comments.