diff --git a/src/org/redkale/util/Sheet.java b/src/org/redkale/util/Sheet.java
index 76f38ab52..85676afdf 100644
--- a/src/org/redkale/util/Sheet.java
+++ b/src/org/redkale/util/Sheet.java
@@ -67,7 +67,7 @@ public class Sheet<T> implements java.io.Serializable, Iterable<T> {
 
     @Override
     public String toString() {
-        return "Sheet[total=" + this.total + ", rows=" + this.rows + "]";
+        return "{\"total\":" + this.total + ", \"rows\":" + this.rows + "}";
     }
 
     public long getTotal() {
@@ -107,6 +107,12 @@ public class Sheet<T> implements java.io.Serializable, Iterable<T> {
         }
     }
 
+    public void forEachParallel(final Consumer<? super T> consumer) {
+        if (consumer != null && this.rows != null && !this.rows.isEmpty()) {
+            this.rows.parallelStream().forEach(consumer);
+        }
+    }
+
     @Override
     public Spliterator<T> spliterator() {
         return (this.rows == null) ? new ArrayList<T>().spliterator() : this.rows.spliterator();