我的excel代码是这样的 var uri = 'data:application/vnd.ms-excel;base64,''<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excelbase64(format(template, ctx))
script type="text/javascript"> var uri = 'data:application/vnd.ms-excel'<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel