diff --git a/apps/wr/app/(with-layout)/ruseFcltMng/fcltSttn/rainSttn/page.tsx b/apps/wr/app/(with-layout)/ruseFcltMng/fcltSttn/rainSttn/page.tsx
index 029f19852..d4658297a 100644
--- a/apps/wr/app/(with-layout)/ruseFcltMng/fcltSttn/rainSttn/page.tsx
+++ b/apps/wr/app/(with-layout)/ruseFcltMng/fcltSttn/rainSttn/page.tsx
@@ -9,10 +9,11 @@ import type {
 } from "@/app/store/ruseFcltMng/fcltReg/rainReg";
 import { rainSttnSize } from "@/app/store/ruseFcltMng/fcltSttn/rainSttn";
 import {
-  excelDownload,
+  excelDownloadStyle,
   getCity,
   tableData,
 } from "@/components/lib/func/commom";
+import { type SheetParameter } from "@common/business_components/ui";
 import type { objSearchType } from "@/components/ui/modal/fcltReg/bdstRegModal/bdstRegModal";
 import HeadChModal from "@/components/ui/modal/sttn/headChModal/headChModal";
 import SttnDetailModal from "@/components/ui/modal/sttn/sttnDetailModal/sttnDetailModal";
@@ -158,11 +159,19 @@ export default function RainSttn() {
       return;
     }
     if (rainSttn.excelList.length > 0) {
-      excelDownload(
-        rainSttn.excelList,
+      const sheetArray: SheetParameter[] = [{
+        data: rainSttn.excelList,
+        headerNum: 3,
+        headerRange: "A1:W3",
+        sheetName: 'sheet1',
+        writeLine: 4,
+        startCol: 'A',
+        decimalArray0: [6,10,12,14,16]
+      }];
+      excelDownloadStyle(
         "빗물이용시설 현황",
-        "sample_rainSttn.xlsx",
-        "A1:W3"
+        "sample_rainSttn.xlsx", // public 폴더에 있는 template 파일 경로
+        sheetArray
       );
     } else {
       toast.error(t("excelDownErrMsg"));
diff --git a/apps/wr/components/lib/func/commom.tsx b/apps/wr/components/lib/func/commom.tsx
index a99dd8db8..ff0082434 100644
--- a/apps/wr/components/lib/func/commom.tsx
+++ b/apps/wr/components/lib/func/commom.tsx
@@ -2,11 +2,14 @@ import { lwCds, type comCodeState } from "@/app/store/common/code";
 import {
   filePickedBlob,
   filePickedBlobArray,
+  filePickedBlobArrayFormat,
+  filePickedBlobNumStyle,
   type ReturnType,
   type SelectDataType,
   type SheetParameter,
 } from "@common/business_components/ui";
 import { Button } from "@common/components/ui";
+import { write } from "fs";
 import moment from "moment";
 import type { RefObject } from "react";
 import toast from "react-hot-toast";
@@ -100,6 +103,26 @@ export const excelDownload = (
   });
 };
 
+export const excelDownloadStyle = (
+  // excelList: [][],
+  fileNm: string,
+  sampleFile: string,
+  sheetArray: SheetParameter[]
+) => {
+  // if (excelList.length === 0) return;
+  fetch(`/${sampleFile}`, {}).then(async (response) => {
+    if (!response.ok) {
+      throw Error(response.statusText);
+    }
+    // 받은 파일 바인너리 처리
+    const blobRet = await response.arrayBuffer();
+    // 버퍼에 있는 엑셀데이터 전달 후 json으로 변환
+    // await filePickedBlob(blobRet, excelList, fileNm, writeLine, headerRange);
+    
+    await filePickedBlobNumStyle(blobRet, fileNm, sheetArray);
+  });
+};
+
 export const excelArrayDownload = (
   fileNm: string,
   sampleFile: string,
diff --git a/packages/common/business_components/src/ui/excel/index.tsx b/packages/common/business_components/src/ui/excel/index.tsx
index 80acd9696..a532e948e 100644
--- a/packages/common/business_components/src/ui/excel/index.tsx
+++ b/packages/common/business_components/src/ui/excel/index.tsx
@@ -17,6 +17,105 @@ type ExcelDownloadProps = {
   decimalRange3?: string;
 }
 
+export type SheetParameter = {
+  data: any[][];
+  headerNum: number;
+  headerRange: string;
+  sheetName: string;
+  writeLine?: number;
+  startCol?: string;
+  decimalArray0?: number[];
+  decimalArray1?: number[];
+  decimalArray2?: number[];
+  decimalArray3?: number[];
+  decimalRange0?: string;
+  decimalRange1?: string;
+  decimalRange2?: string;
+  decimalRange3?: string;
+};
+
+// Shared utility to apply number formatting to a sheet range
+export const applyRangeFormat = (
+  sheet: XLSX.WorkSheet,
+  rangeStr: string | undefined,
+  decimal: number
+) => {
+  if (!rangeStr) return;
+  const parts = rangeStr
+    .split(",")
+    .map((part) => part.trim())
+    .filter(Boolean);
+  for (const part of parts) {
+    const rangeInfo = XLSX.utils.decode_range(part);
+    for (let row = rangeInfo.s.r; row <= rangeInfo.e.r; row++) {
+      for (let col = rangeInfo.s.c; col <= rangeInfo.e.c; col++) {
+        const cellAddr = XLSX.utils.encode_cell({ r: row, c: col });
+        const cell = sheet[cellAddr];
+        if (cell) {
+          if (typeof cell.v === "string") {
+            const parsed = Number(cell.v.replace(/,/g, "").trim());
+            if (!Number.isNaN(parsed)) {
+              cell.v = parsed;
+              cell.t = "n";
+            }
+          }
+        }
+        if (cell && typeof cell.v === "number") {
+          if (decimal === 1) {
+            cell.z = "#,##0.0";
+          } else if (decimal === 2) {
+            cell.z = "#,##0.00";
+          } else if (decimal === 3) {
+            cell.z = "#,##0.000";
+          } else {
+            cell.z = "#,##0";
+          }
+        }
+      }
+    }
+  }
+};
+
+
+
+// Shared utility to apply decimal formatting to specific columns in a sheet
+export const applyDecimalColumns = (
+  sheet: XLSX.WorkSheet,
+  startRow: number,
+  range: XLSX.Range,
+  columns: number[],
+  decimal: number
+) => {
+  for (let row = startRow; row <= range.e.r; row++) {
+    if (columns.length > 0) {
+      for (let idx = 0; idx < columns.length; idx++) {
+        const cellAddr = XLSX.utils.encode_cell({ r: row, c: Number(columns[idx]) });
+        const cell = sheet[cellAddr];
+        if (cell) {
+          if (typeof cell.v === "string") {
+            const parsed = Number(cell.v.replace(/,/g, "").trim());
+            if (!Number.isNaN(parsed)) {
+              cell.v = parsed;
+              cell.t = "n";
+            }
+          }
+        }
+        if (cell && typeof cell.v === "number") {
+          if (decimal === 1) {
+            cell.z = "#,##0.0"; // 소수점 1자리
+          } else if (decimal === 2) {
+            cell.z = "#,##0.00";
+          } else if (decimal === 3) {
+            cell.z = "#,##0.000";
+          } else {
+            cell.z = "#,##0"; // 기본 천단위 콤마
+          }
+        }
+      }
+    }
+  }
+};
+
 export const downloadExcel = ({ data, fileName = new Date().getTime().toString() + '.xlsx', sheetNameArray = ["Sheet1"], headerRange='A1:V3'}: ExcelDownloadProps) => {
   const worksheet = XLSX.utils.json_to_sheet(Array.isArray(data) ? data : [data]);
   const workbook = XLSX.utils.book_new();
@@ -57,71 +156,17 @@ export const downloadExcelFormat = ({
   // 🔹 전체 범위
   const range = XLSX.utils.decode_range(worksheet["!ref"] as string);
   
-  const chaneValue = (array: number[], decimal: number) => {
-    for (let row = startRow; row <= range.e.r; row++) {
-      if(array.length>0){
-        for(let idx=0; idx<array.length; idx++){
-          const cellAddr = XLSX.utils.encode_cell({ r: row, c: Number(array[idx]) });
-          const cell = worksheet[cellAddr];
-          if (cell && typeof cell.v === "number") {
-            if(decimal===1){
-              cell.z = "#,##0.0"; // 소수점 3자리
-            }else if(decimal===2){
-              cell.z = "#,##0.00";
-            }else if(decimal===3){
-              cell.z = "#,##0.000";
-            }else{
-              cell.z = "#,##0"; // 기본 천단위 콤마
-            }
-          }
-        }
-      }
-    }
-  };
-  const applyRangeFormat = (rangeStr: string | undefined, decimal: number) => {
-    if (!rangeStr) return;
-    const rangeInfo = XLSX.utils.decode_range(rangeStr);
-    for (let row = rangeInfo.s.r; row <= rangeInfo.e.r; row++) {
-      for (let col = rangeInfo.s.c; col <= rangeInfo.e.c; col++) {
-        const cellAddr = XLSX.utils.encode_cell({ r: row, c: col });
-        const cell = worksheet[cellAddr];
-        if (cell && typeof cell.v === "number") {
-          if (decimal === 1) {
-            cell.z = "#,##0.0";
-          } else if (decimal === 2) {
-            cell.z = "#,##0.00";
-          } else if (decimal === 3) {
-            cell.z = "#,##0.000";
-          } else {
-            cell.z = "#,##0";
-          }
-        }
-      }
-    }
-  };
-  chaneValue(decimalArray0, 0);
-  chaneValue(decimalArray1, 1);
-  chaneValue(decimalArray2, 2);
-  chaneValue(decimalArray3, 3);
-  applyRangeFormat(decimalRange0, 0);
-  applyRangeFormat(decimalRange1, 1);
-  applyRangeFormat(decimalRange2, 2);
-  applyRangeFormat(decimalRange3, 3);
+  applyDecimalColumns(worksheet, startRow, range, decimalArray0, 0);
+  applyDecimalColumns(worksheet, startRow, range, decimalArray1, 1);
+  applyDecimalColumns(worksheet, startRow, range, decimalArray2, 2);
+  applyDecimalColumns(worksheet, startRow, range, decimalArray3, 3);
+  applyRangeFormat(worksheet, decimalRange0, 0);
+  applyRangeFormat(worksheet, decimalRange1, 1);
+  applyRangeFormat(worksheet, decimalRange2, 2);
+  applyRangeFormat(worksheet, decimalRange3, 3);
   excelStyle(XLSX.write(workbook, { bookType: "xlsx", type: "buffer" }), headerRange, fileName);
 };
 
-export type SheetParameter = {
-  data: any[][];
-  headerNum: number;
-  headerRange: string;
-  sheetName: string;
-  startCol?: string;
-  decimalRange0?: string;
-  decimalRange1?: string;
-  decimalRange2?: string;
-  decimalRange3?: string;
-};
-
 export const downloadMultipleExcel = (fileName = new Date().getTime().toString() + '.xlsx', sheetArray: SheetParameter[]): Promise<JSON | undefined> => { 
   const workbook = XLSX.utils.book_new();
   for (let i = 0; i < sheetArray.length; i++) {
@@ -223,7 +268,13 @@ export const filePickedArray=(oFile: File, headerNum:number=0):Promise<JSON[] |
   });
 }
 
-export const filePickedBlob=(oFile: ArrayBuffer, data:[][],fileNm:string, headerNum:number=0, headerRange='A1:V3', startCol?:number):Promise<JSON | undefined> =>{ // Create A File Reader HTML5
+export const filePickedBlob = (
+  oFile: ArrayBuffer, 
+  data:[][],fileNm:string, 
+  headerNum:number=0, 
+  headerRange='A1:V3', 
+  startCol?:number
+):Promise<JSON | undefined> =>{ // Create A File Reader HTML5
   return new Promise<JSON | undefined>(() => {
     // Ready The Event For When A File Gets Selected
       const wb = XLSX.read(oFile, { type: 'binary' });
@@ -244,26 +295,56 @@ export const filePickedBlob=(oFile: ArrayBuffer, data:[][],fileNm:string, header
           }
         } 
       });
-    });
-  }
+  });
+}
+export const filePickedBlobNumStyle = async (
+  oFile: ArrayBuffer, 
+  fileNm:string, 
+  sheetArray: SheetParameter[]
+):Promise<JSON | undefined> => { // Create A File Reader HTML5
+
+  // Ready The Event For When A File Gets Selected
+  const wb = XLSX.read(oFile, { type: "binary" });
+
+  wb.SheetNames.forEach((sheetName, index) => {
+    if (sheetArray[index]) {
+      const sheet = wb.Sheets[sheetName];
+      if (sheet) {
+        const startCol = sheetArray[index].startCol ?? "A";
+        const dataStartLine = sheetArray[index].writeLine ?? sheetArray[index].headerNum;
+        
+        XLSX.utils.sheet_add_aoa(sheet, sheetArray[index].data, {
+          origin: startCol + dataStartLine, // startLine 은 1부터 시작
+        });
+        const startRow = Math.max(dataStartLine - 1, 0); // 행은 0부터 시작
+
+        // 🔹 전체 범위
+        const range = XLSX.utils.decode_range(sheet["!ref"] as string);
+        
+        if(sheetArray[index].decimalArray0){ applyDecimalColumns(sheet, startRow, range, sheetArray[index].decimalArray0, 0); }
+        if(sheetArray[index].decimalArray1){ applyDecimalColumns(sheet, startRow, range, sheetArray[index].decimalArray1, 1); }
+        if(sheetArray[index].decimalArray2){ applyDecimalColumns(sheet, startRow, range, sheetArray[index].decimalArray2, 2); }
+        if(sheetArray[index].decimalArray3){ applyDecimalColumns(sheet, startRow, range, sheetArray[index].decimalArray3, 3); }
+        if(sheetArray[index].decimalRange0){ applyRangeFormat(sheet, sheetArray[index].decimalRange0, 0); }
+        if(sheetArray[index].decimalRange1){ applyRangeFormat(sheet, sheetArray[index].decimalRange1, 1); }
+        if(sheetArray[index].decimalRange2){ applyRangeFormat(sheet, sheetArray[index].decimalRange2, 2); }
+        if(sheetArray[index].decimalRange3){ applyRangeFormat(sheet, sheetArray[index].decimalRange3, 3); }
+      } else {
+        console.error(`Sheet "${sheetName}" is undefined.`);
+      }
+    }
+  });
+
+  await excelArrayStyle(
+    XLSX.write(wb, { bookType: "xlsx", type: "buffer" }),
+    sheetArray,
+    fileNm
+  );
+
+  return undefined;
+};
+
 
-// export const filePickedBlobArray = (oFile: ArrayBuffer, fileNm: string, sheetArray: SheetParameter[]): Promise<JSON | undefined> => {
-//   return new Promise<JSON | undefined>(async () => {
-//     const wb = XLSX.read(oFile, { type: 'binary' });
-//     wb.SheetNames.forEach(function (sheetName, index) {
-//       if (sheetArray[index]) {
-//         const sheet = wb.Sheets[sheetName];
-//         if (sheet) {
-//           const startCol = sheetArray[index].startCol ? sheetArray[index].startCol : 'A';
-//           XLSX.utils.sheet_add_aoa(sheet, sheetArray[index].data, { origin: startCol + sheetArray[index].headerNum });
-//         } else {
-//           console.error(`Sheet "${sheetName}" is undefined.`);
-//         }
-//       }
-//     });
-//     await excelArrayStyle(XLSX.write(wb, { bookType: "xlsx", type: "buffer" }), sheetArray, fileNm)
-//   });
-// }
 export const filePickedBlobArray = async (
   oFile: ArrayBuffer,
   fileNm: string,
@@ -301,34 +382,10 @@ export const filePickedBlobArrayFormat = async (
         XLSX.utils.sheet_add_aoa(sheet, sheetArray[index].data, {
           origin: startCol + sheetArray[index].headerNum,
         });
-        const applyRangeFormat = (rangeStr: string | undefined, decimal: number) => {
-          if (!rangeStr) return;
-          const parts = rangeStr.split(",").map((part) => part.trim()).filter(Boolean);
-          for (const part of parts) {
-            const rangeInfo = XLSX.utils.decode_range(part);
-            for (let row = rangeInfo.s.r; row <= rangeInfo.e.r; row++) {
-              for (let col = rangeInfo.s.c; col <= rangeInfo.e.c; col++) {
-                const cellAddr = XLSX.utils.encode_cell({ r: row, c: col });
-                const cell = sheet[cellAddr];
-                if (cell && typeof cell.v === "number") {
-                  if (decimal === 1) {
-                    cell.z = "#,##0.0";
-                  } else if (decimal === 2) {
-                    cell.z = "#,##0.00";
-                  } else if (decimal === 3) {
-                    cell.z = "#,##0.000";
-                  } else {
-                    cell.z = "#,##0";
-                  }
-                }
-              }
-            }
-          }
-        };
-        applyRangeFormat(sheetArray[index].decimalRange0, 0);
-        applyRangeFormat(sheetArray[index].decimalRange1, 1);
-        applyRangeFormat(sheetArray[index].decimalRange2, 2);
-        applyRangeFormat(sheetArray[index].decimalRange3, 3);
+        applyRangeFormat(sheet, sheetArray[index].decimalRange0, 0);
+        applyRangeFormat(sheet, sheetArray[index].decimalRange1, 1);
+        applyRangeFormat(sheet, sheetArray[index].decimalRange2, 2);
+        applyRangeFormat(sheet, sheetArray[index].decimalRange3, 3);
       } else {
         console.error(`Sheet "${sheetName}" is undefined.`);
       }