diff --git a/src/main/java/org/tdl/vireo/model/packager/ExcelPackager.java b/src/main/java/org/tdl/vireo/model/packager/ExcelPackager.java
index a897693807..ec0796eba3 100644
--- a/src/main/java/org/tdl/vireo/model/packager/ExcelPackager.java
+++ b/src/main/java/org/tdl/vireo/model/packager/ExcelPackager.java
@@ -49,12 +49,12 @@ public ExcelPackager(String name, AbstractFormatter formatter) {
 
     @Override
     public String getMimeType() {
-        return "application/vnd.ms-excel";
+        return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
     }
 
     @Override
     public String getFileExtension() {
-        return "xls";
+        return "xlsx";
     }
 
     @Override