diff --git a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
index bdaa0115..573acfc8 100644
--- a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
+++ b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
@@ -34,18 +34,11 @@ import com.interplug.qcast.util.InterfaceQsp;
 import com.interplug.qcast.util.PdfUtil;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import java.beans.BeanInfo;
-import java.beans.Introspector;
-import java.beans.PropertyDescriptor;
 import java.io.IOException;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
 import java.math.BigDecimal;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import lombok.RequiredArgsConstructor;
@@ -1019,8 +1012,8 @@ public class EstimateService {
         excelUtil.download(
             request,
             response,
-            this.convertVoToMap(estimateResponse),
-            this.convertListToMap(estimateItemList),
+            excelUtil.convertVoToMap(estimateResponse),
+            excelUtil.convertListToMap(estimateItemList),
             estimateRequest.getFileName(),
             excelTemplateNam);
       }
@@ -1557,60 +1550,6 @@ public class EstimateService {
     return doc;
   }
 
-  /**
-   * Object => Map 변환 함수
-   *
-   * @param vo Object
-   * @return Map<String, Object> Map 변환 정보
-   */
-  public Map<String, Object> convertVoToMap(Object vo) {
-    Map<String, Object> result = new HashMap<String, Object>();
-
-    try {
-      BeanInfo info = Introspector.getBeanInfo(vo.getClass());
-      for (PropertyDescriptor pd : info.getPropertyDescriptors()) {
-        Method reader = pd.getReadMethod();
-        if (reader != null) {
-          result.put(pd.getName(), reader.invoke(vo));
-        }
-      }
-    } catch (Exception e) {
-      log.error("convertVoToMap >>> " + e.getMessage());
-    }
-    return result;
-  }
-
-  /**
-   * List<Object> => List<Map> 변환 함수
-   *
-   * @param target List<Object>
-   * @return List<Map<String, Object>> List<Map> 변환 정보
-   */
-  public static <T> List<Map<String, Object>> convertListToMap(Collection<T> target) {
-    List<Map<String, Object>> resultList = new ArrayList<Map<String, Object>>();
-
-    for (T element : target) {
-      Map<String, Object> resultMap = new HashMap<String, Object>();
-      Field[] fieldList = element.getClass().getDeclaredFields();
-      if (fieldList != null && fieldList.length > 0) {
-        try {
-          for (int i = 0; i < fieldList.length; i++) {
-            String curInsName = fieldList[i].getName();
-            Field field = element.getClass().getDeclaredField(curInsName);
-            field.setAccessible(true);
-            Object targetValue = field.get(element);
-
-            resultMap.put(curInsName, targetValue);
-          }
-          resultList.add(resultMap);
-        } catch (Exception e) {
-          log.error("convertListToMap >>> " + e.getMessage());
-        }
-      }
-    }
-    return resultList;
-  }
-
   /**
    * Plan 확정 정보 동기화
    *
diff --git a/src/main/java/com/interplug/qcast/util/ExcelUtil.java b/src/main/java/com/interplug/qcast/util/ExcelUtil.java
index 37ed9e7b..9d1a543b 100644
--- a/src/main/java/com/interplug/qcast/util/ExcelUtil.java
+++ b/src/main/java/com/interplug/qcast/util/ExcelUtil.java
@@ -3,9 +3,13 @@ package com.interplug.qcast.util;
 import com.fasterxml.jackson.databind.exc.InvalidFormatException;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+import java.beans.BeanInfo;
+import java.beans.Introspector;
+import java.beans.PropertyDescriptor;
 import java.io.*;
-import java.util.List;
-import java.util.Map;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.*;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import net.sf.jxls.exception.ParsePropertyException;
@@ -60,4 +64,58 @@ public class ExcelUtil {
       log.debug(e.getMessage());
     }
   }
+
+  /**
+   * Object => Map 변환 함수
+   *
+   * @param vo Object
+   * @return Map<String, Object> Map 변환 정보
+   */
+  public Map<String, Object> convertVoToMap(Object vo) {
+    Map<String, Object> result = new HashMap<String, Object>();
+
+    try {
+      BeanInfo info = Introspector.getBeanInfo(vo.getClass());
+      for (PropertyDescriptor pd : info.getPropertyDescriptors()) {
+        Method reader = pd.getReadMethod();
+        if (reader != null) {
+          result.put(pd.getName(), reader.invoke(vo));
+        }
+      }
+    } catch (Exception e) {
+      log.error("convertVoToMap >>> " + e.getMessage());
+    }
+    return result;
+  }
+
+  /**
+   * List<Object> => List<Map> 변환 함수
+   *
+   * @param target List<Object>
+   * @return List<Map<String, Object>> List<Map> 변환 정보
+   */
+  public static <T> List<Map<String, Object>> convertListToMap(Collection<T> target) {
+    List<Map<String, Object>> resultList = new ArrayList<Map<String, Object>>();
+
+    for (T element : target) {
+      Map<String, Object> resultMap = new HashMap<String, Object>();
+      Field[] fieldList = element.getClass().getDeclaredFields();
+      if (fieldList != null && fieldList.length > 0) {
+        try {
+          for (int i = 0; i < fieldList.length; i++) {
+            String curInsName = fieldList[i].getName();
+            Field field = element.getClass().getDeclaredField(curInsName);
+            field.setAccessible(true);
+            Object targetValue = field.get(element);
+
+            resultMap.put(curInsName, targetValue);
+          }
+          resultList.add(resultMap);
+        } catch (Exception e) {
+          log.error("convertListToMap >>> " + e.getMessage());
+        }
+      }
+    }
+    return resultList;
+  }
 }