diff --git a/poi/src/main/java/org/apache/poi/ss/usermodel/WorkbookFactory.java b/poi/src/main/java/org/apache/poi/ss/usermodel/WorkbookFactory.java
index 823bbf5c4e..f613fe4486 100644
--- a/poi/src/main/java/org/apache/poi/ss/usermodel/WorkbookFactory.java
+++ b/poi/src/main/java/org/apache/poi/ss/usermodel/WorkbookFactory.java
@@ -19,7 +19,11 @@ package org.apache.poi.ss.usermodel;
 import static org.apache.poi.extractor.ExtractorFactory.OOXML_PACKAGE;
 import static org.apache.poi.poifs.crypt.Decryptor.DEFAULT_POIFS_ENTRY;
 
-import java.io.*;
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.ServiceLoader;