xltx
application/vnd.openxmlformats-officedocument.spreadsheetml.template
https://old.comunesgv.it/mftype/xltx/application/vnd.openxmlformats-officedocument.spreadsheetml.templateCed SgvAlessandro Giottialessandro.giotti@comunesgv.itAdministratorCOMUNE DI SAN GIOVANNI VALDARNO