diff --git a/pom.xml b/pom.xml
index 8ebb3c9..e19f50a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,6 +26,24 @@
             <artifactId>poi</artifactId>
             <version>4.1.2</version>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml</artifactId>
+            <version>4.1.2</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml-schemas</artifactId>
+            <version>4.1.2</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-scratchpad</artifactId>
+            <version>4.1.2</version>
+        </dependency>
 
     </dependencies>
 
diff --git a/src/main/java/io/lroyia/ApplicationRun.java b/src/main/java/io/lroyia/ApplicationRun.java
index b0edd83..12dd4a8 100644
--- a/src/main/java/io/lroyia/ApplicationRun.java
+++ b/src/main/java/io/lroyia/ApplicationRun.java
@@ -3,10 +3,10 @@ package io.lroyia;
 import org.apache.commons.csv.CSVFormat;
 import org.apache.commons.csv.CSVParser;
 import org.apache.commons.csv.CSVRecord;
-import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
 import java.io.File;
 import java.io.FileOutputStream;
@@ -41,12 +41,12 @@ public class ApplicationRun {
         }
         File file = new File(fileUri);
         String fileName = file.getName();
-        String newFileName = fileName.replace(".csv", ".xls");
+        String newFileName = fileName.replace(".csv", ".xlsx");
         try(CSVParser csv = CSVParser.parse(file, Charset.forName(chartSet), CSVFormat.DEFAULT);
             OutputStream os = new FileOutputStream(newFileName)){
             List<String> headerNames = csv.getHeaderNames();
             System.out.println(headerNames);
-            HSSFWorkbook workbook = new HSSFWorkbook();
+            XSSFWorkbook workbook = new XSSFWorkbook();
             Sheet sheet = workbook.createSheet();
             Row header = sheet.createRow(0);
             int colLength = headerNames.size();