diff --git a/backend-node/src/app.ts b/backend-node/src/app.ts
index 6339213e..3c8974d4 100644
--- a/backend-node/src/app.ts
+++ b/backend-node/src/app.ts
@@ -52,14 +52,20 @@ import { BatchSchedulerService } from "./services/batchSchedulerService";
 const app = express();
 
 // 기본 미들웨어
-app.use(helmet({
-  contentSecurityPolicy: {
-    directives: {
-      ...helmet.contentSecurityPolicy.getDefaultDirectives(),
-      "frame-ancestors": ["'self'", "http://localhost:9771", "http://localhost:3000"], // 프론트엔드 도메인 허용
+app.use(
+  helmet({
+    contentSecurityPolicy: {
+      directives: {
+        ...helmet.contentSecurityPolicy.getDefaultDirectives(),
+        "frame-ancestors": [
+          "'self'",
+          "http://localhost:9771",
+          "http://localhost:3000",
+        ], // 프론트엔드 도메인 허용
+      },
     },
-  },
-}));
+  })
+);
 app.use(compression());
 app.use(express.json({ limit: "10mb" }));
 app.use(express.urlencoded({ extended: true, limit: "10mb" }));
@@ -104,7 +110,7 @@ app.use(
 // Rate Limiting (개발 환경에서는 완화)
 const limiter = rateLimit({
   windowMs: 1 * 60 * 1000, // 1분
-  max: config.nodeEnv === "development" ? 10000 : 100, // 개발환경에서는 10000으로 증가, 운영환경에서는 100
+  max: config.nodeEnv === "development" ? 10000 : 10000, // 개발환경에서는 10000으로 증가, 운영환경에서는 100
   message: {
     error: "너무 많은 요청이 발생했습니다. 잠시 후 다시 시도해주세요.",
   },
@@ -191,7 +197,7 @@ app.listen(PORT, HOST, async () => {
   logger.info(`📊 Environment: ${config.nodeEnv}`);
   logger.info(`🔗 Health check: http://${HOST}:${PORT}/health`);
   logger.info(`🌐 External access: http://39.117.244.52:${PORT}/health`);
-  
+
   // 배치 스케줄러 초기화
   try {
     await BatchSchedulerService.initialize();
diff --git a/backend-node/src/services/enhancedDataflowControlService.ts b/backend-node/src/services/enhancedDataflowControlService.ts
index 6aae33da..862feda0 100644
--- a/backend-node/src/services/enhancedDataflowControlService.ts
+++ b/backend-node/src/services/enhancedDataflowControlService.ts
@@ -11,15 +11,15 @@ import {
 import { MultiConnectionQueryService } from "./multiConnectionQueryService";
 import { logger } from "../utils/logger";
 
-export interface EnhancedControlAction extends ControlAction {
-  // 🆕 기본 ControlAction 속성들 (상속됨)
-  id?: number;
-  actionType?: string;
+export interface EnhancedControlAction
+  extends Omit<ControlAction, "id" | "conditions" | "fieldMappings"> {
+  // 🆕 기본 ControlAction 속성들 (일부 재정의)
+  id: string; // ControlAction과 호환성을 위해 string 타입 유지
   fromTable: string;
 
-  // 🆕 추가 속성들
-  conditions?: ControlCondition[];
-  fieldMappings?: any[];
+  // 🆕 추가 속성들 (선택적으로 재정의)
+  conditions: ControlCondition[]; // 필수 속성으로 변경
+  fieldMappings: any[]; // 필수 속성으로 변경
 
   // 🆕 UPDATE 액션 관련 필드
   updateConditions?: UpdateCondition[];
@@ -166,16 +166,16 @@ export class EnhancedDataflowControlService extends DataflowControlService {
           let actionResult: any;
 
           // 커넥션 ID 추출
-          const sourceConnectionId = enhancedAction.fromConnection?.connectionId || enhancedAction.fromConnection?.id || 0;
-          const targetConnectionId = enhancedAction.toConnection?.connectionId || enhancedAction.toConnection?.id || 0;
+          const sourceConnectionId = enhancedAction.fromConnection?.id || 0;
+          const targetConnectionId = enhancedAction.toConnection?.id || 0;
 
           switch (enhancedAction.actionType) {
             case "insert":
-              actionResult = await this.executeMultiConnectionInsert(
+              actionResult = await this.executeEnhancedMultiConnectionInsert(
                 enhancedAction,
                 sourceData,
                 enhancedAction.fromTable,
-                enhancedAction.targetTable,
+                enhancedAction.targetTable || enhancedAction.fromTable,
                 sourceConnectionId,
                 targetConnectionId,
                 null
@@ -183,11 +183,11 @@ export class EnhancedDataflowControlService extends DataflowControlService {
               break;
 
             case "update":
-              actionResult = await this.executeMultiConnectionUpdate(
+              actionResult = await this.executeEnhancedMultiConnectionUpdate(
                 enhancedAction,
                 sourceData,
                 enhancedAction.fromTable,
-                enhancedAction.targetTable,
+                enhancedAction.targetTable || enhancedAction.fromTable,
                 sourceConnectionId,
                 targetConnectionId,
                 null
@@ -195,11 +195,11 @@ export class EnhancedDataflowControlService extends DataflowControlService {
               break;
 
             case "delete":
-              actionResult = await this.executeMultiConnectionDelete(
+              actionResult = await this.executeEnhancedMultiConnectionDelete(
                 enhancedAction,
                 sourceData,
                 enhancedAction.fromTable,
-                enhancedAction.targetTable,
+                enhancedAction.targetTable || enhancedAction.fromTable,
                 sourceConnectionId,
                 targetConnectionId,
                 null
@@ -247,8 +247,8 @@ export class EnhancedDataflowControlService extends DataflowControlService {
   /**
    * 🆕 다중 커넥션 INSERT 실행
    */
-  async executeMultiConnectionInsert(
-    action: EnhancedControlAction,
+  async executeEnhancedMultiConnectionInsert(
+    action: ControlAction,
     sourceData: Record<string, any>,
     sourceTable: string,
     targetTable: string,
@@ -257,16 +257,17 @@ export class EnhancedDataflowControlService extends DataflowControlService {
     multiConnService: any
   ): Promise<any> {
     try {
-      logger.info(`다중 커넥션 INSERT 실행: action=${action.action}`);
+      const enhancedAction = action as EnhancedControlAction;
+      logger.info(`다중 커넥션 INSERT 실행: action=${action.id}`);
 
       // 커넥션 ID 결정
-      const fromConnId = fromConnectionId || action.fromConnection?.connectionId || 0;
-      const toConnId = toConnectionId || action.toConnection?.connectionId || 0;
+      const fromConnId = fromConnectionId || action.fromConnection?.id || 0;
+      const toConnId = toConnectionId || action.toConnection?.id || 0;
 
       // FROM 테이블에서 소스 데이터 조회 (조건이 있는 경우)
       let fromData = sourceData;
       if (
-        action.fromTable &&
+        enhancedAction.fromTable &&
         action.conditions &&
         action.conditions.length > 0
       ) {
@@ -277,7 +278,7 @@ export class EnhancedDataflowControlService extends DataflowControlService {
         const fromResults =
           await this.multiConnectionService.fetchDataFromConnection(
             fromConnId,
-            action.fromTable,
+            enhancedAction.fromTable,
             queryConditions
           );
 
@@ -302,7 +303,7 @@ export class EnhancedDataflowControlService extends DataflowControlService {
       const insertResult =
         await this.multiConnectionService.insertDataToConnection(
           toConnId,
-          action.targetTable,
+          action.targetTable || enhancedAction.fromTable,
           mappedData
         );
 
@@ -317,8 +318,8 @@ export class EnhancedDataflowControlService extends DataflowControlService {
   /**
    * 🆕 다중 커넥션 UPDATE 실행
    */
-  async executeMultiConnectionUpdate(
-    action: EnhancedControlAction,
+  async executeEnhancedMultiConnectionUpdate(
+    action: ControlAction,
     sourceData: Record<string, any>,
     sourceTable: string,
     targetTable: string,
@@ -327,26 +328,30 @@ export class EnhancedDataflowControlService extends DataflowControlService {
     multiConnService: any
   ): Promise<any> {
     try {
-      logger.info(`다중 커넥션 UPDATE 실행: action=${action.action}`);
+      const enhancedAction = action as EnhancedControlAction;
+      logger.info(`다중 커넥션 UPDATE 실행: action=${action.id}`);
 
       // 커넥션 ID 결정
-      const fromConnId = fromConnectionId || action.fromConnection?.connectionId || 0;
-      const toConnId = toConnectionId || action.toConnection?.connectionId || 0;
+      const fromConnId = fromConnectionId || action.fromConnection?.id || 0;
+      const toConnId = toConnectionId || action.toConnection?.id || 0;
 
       // UPDATE 조건 확인
-      if (!action.updateConditions || action.updateConditions.length === 0) {
+      if (
+        !enhancedAction.updateConditions ||
+        enhancedAction.updateConditions.length === 0
+      ) {
         throw new Error("UPDATE 작업에는 업데이트 조건이 필요합니다.");
       }
 
       // FROM 테이블에서 업데이트 조건 확인
       const updateConditions = this.buildUpdateConditions(
-        action.updateConditions,
+        enhancedAction.updateConditions,
         sourceData
       );
       const fromResults =
         await this.multiConnectionService.fetchDataFromConnection(
           fromConnId,
-          action.fromTable || action.targetTable,
+          enhancedAction.fromTable || action.targetTable || "default_table",
           updateConditions
         );
 
@@ -360,13 +365,13 @@ export class EnhancedDataflowControlService extends DataflowControlService {
 
       // 업데이트 필드 매핑 적용
       const updateData = this.applyUpdateFieldMappings(
-        action.updateFields || [],
+        enhancedAction.updateFields || [],
         fromResults[0]
       );
 
       // WHERE 조건 구성 (TO 테이블 대상)
       const whereConditions = this.buildWhereConditions(
-        action.updateFields || [],
+        enhancedAction.updateFields || [],
         fromResults[0]
       );
 
@@ -374,7 +379,7 @@ export class EnhancedDataflowControlService extends DataflowControlService {
       const updateResult =
         await this.multiConnectionService.updateDataToConnection(
           toConnId,
-          action.targetTable,
+          action.targetTable || enhancedAction.fromTable,
           updateData,
           whereConditions
         );
@@ -390,8 +395,8 @@ export class EnhancedDataflowControlService extends DataflowControlService {
   /**
    * 🆕 다중 커넥션 DELETE 실행
    */
-  async executeMultiConnectionDelete(
-    action: EnhancedControlAction,
+  async executeEnhancedMultiConnectionDelete(
+    action: ControlAction,
     sourceData: Record<string, any>,
     sourceTable: string,
     targetTable: string,
@@ -400,28 +405,30 @@ export class EnhancedDataflowControlService extends DataflowControlService {
     multiConnService: any
   ): Promise<any> {
     try {
-      logger.info(`다중 커넥션 DELETE 실행: action=${action.action}`);
+      const enhancedAction = action as EnhancedControlAction;
+      logger.info(`다중 커넥션 DELETE 실행: action=${action.id}`);
 
       // 커넥션 ID 결정
-      const fromConnId =
-        fromConnectionId || action.fromConnection?.connectionId || 0;
-      const toConnId =
-        toConnectionId || action.toConnection?.connectionId || 0;
+      const fromConnId = fromConnectionId || action.fromConnection?.id || 0;
+      const toConnId = toConnectionId || action.toConnection?.id || 0;
 
       // DELETE 조건 확인
-      if (!action.deleteConditions || action.deleteConditions.length === 0) {
+      if (
+        !enhancedAction.deleteConditions ||
+        enhancedAction.deleteConditions.length === 0
+      ) {
         throw new Error("DELETE 작업에는 삭제 조건이 필요합니다.");
       }
 
       // FROM 테이블에서 삭제 트리거 조건 확인
       const deleteConditions = this.buildDeleteConditions(
-        action.deleteConditions,
+        enhancedAction.deleteConditions,
         sourceData
       );
       const fromResults =
         await this.multiConnectionService.fetchDataFromConnection(
           fromConnId,
-          action.fromTable || action.targetTable,
+          enhancedAction.fromTable || action.targetTable || "default_table",
           deleteConditions
         );
 
@@ -432,7 +439,7 @@ export class EnhancedDataflowControlService extends DataflowControlService {
 
       // WHERE 조건 구성 (TO 테이블 대상)
       const whereConditions = this.buildDeleteWhereConditions(
-        action.deleteWhereConditions || [],
+        enhancedAction.deleteWhereConditions || [],
         fromResults[0]
       );
 
@@ -441,14 +448,14 @@ export class EnhancedDataflowControlService extends DataflowControlService {
       }
 
       // 안전장치 적용
-      const maxDeleteCount = action.maxDeleteCount || 100;
+      const maxDeleteCount = enhancedAction.maxDeleteCount || 100;
 
       // Dry Run 실행 (선택사항)
-      if (action.dryRunFirst) {
+      if (enhancedAction.dryRunFirst) {
         const countResult =
           await this.multiConnectionService.fetchDataFromConnection(
             toConnId,
-            action.targetTable,
+            action.targetTable || enhancedAction.fromTable,
             whereConditions
           );
 
@@ -465,13 +472,13 @@ export class EnhancedDataflowControlService extends DataflowControlService {
       const deleteResult =
         await this.multiConnectionService.deleteDataFromConnection(
           toConnId,
-          action.targetTable,
+          action.targetTable || enhancedAction.fromTable,
           whereConditions,
           maxDeleteCount
         );
 
       // 삭제 로그 기록 (선택사항)
-      if (action.logAllDeletes) {
+      if (enhancedAction.logAllDeletes) {
         logger.info(
           `삭제 실행 로그: ${JSON.stringify({
             action: action.id,
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 4e699d12..7db705eb 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -39,7 +39,9 @@
         "clsx": "^2.1.1",
         "cmdk": "^1.1.1",
         "date-fns": "^4.1.0",
+        "docx-preview": "^0.3.6",
         "lucide-react": "^0.525.0",
+        "mammoth": "^1.11.0",
         "next": "15.4.4",
         "react": "19.1.0",
         "react-day-picker": "^9.9.0",
@@ -47,8 +49,10 @@
         "react-hook-form": "^7.62.0",
         "react-hot-toast": "^2.6.0",
         "react-window": "^2.1.0",
+        "sheetjs-style": "^0.15.8",
         "sonner": "^2.0.7",
         "tailwind-merge": "^3.3.1",
+        "xlsx": "^0.18.5",
         "zod": "^4.1.5"
       },
       "devDependencies": {
@@ -3351,6 +3355,15 @@
         "win32"
       ]
     },
+    "node_modules/@xmldom/xmldom": {
+      "version": "0.8.11",
+      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.8.11.tgz",
+      "integrity": "sha512-cQzWCtO6C8TQiYl1ruKNn2U6Ao4o4WBBcbL61yJl84x+j5sOWWFU9X7DpND8XZG3daDppSsigMdfAIl2upQBRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/@xyflow/react": {
       "version": "12.8.5",
       "resolved": "https://registry.npmjs.org/@xyflow/react/-/react-12.8.5.tgz",
@@ -3406,6 +3419,22 @@
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
     },
+    "node_modules/adler-32": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.2.0.tgz",
+      "integrity": "sha512-/vUqU/UY4MVeFsg+SsK6c+/05RZXIHZMGJA+PX5JyWI0ZRcBpupnRuPLU/NXXoFwMYCPCoxIfElM2eS+DUXCqQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "exit-on-epipe": "~1.0.1",
+        "printj": "~1.1.0"
+      },
+      "bin": {
+        "adler32": "bin/adler32.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/ajv": {
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
@@ -3705,6 +3734,32 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/base64-js": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/bluebird": {
+      "version": "3.4.7",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.4.7.tgz",
+      "integrity": "sha512-iD3898SR7sWVRHbiQv+sHUtHnMvC1o3nW5rAcqnq3uOn07DSAppZYUkIGslDz6gXC7HfunPe7YVBgoEJASPcHA==",
+      "license": "MIT"
+    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -3837,6 +3892,28 @@
       ],
       "license": "CC-BY-4.0"
     },
+    "node_modules/cfb": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/cfb/-/cfb-1.2.2.tgz",
+      "integrity": "sha512-KfdUZsSOw19/ObEWasvBP/Ac4reZvAGauZhs6S/gqNhXhI7cKwvlH7ulj+dOEYnca4bm4SGo8C1bTAQvnTjgQA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "crc-32": "~1.2.0"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/cfb/node_modules/adler-32": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.3.1.tgz",
+      "integrity": "sha512-ynZ4w/nUUv5rrsR8UUGoe1VC9hZj6V5hU9Qw1HlMDJGEJw5S7TfTErWTjMys6M7vr0YWcPqs3qAr4ss0nDfP+A==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
@@ -3939,6 +4016,28 @@
         "react-dom": "^18 || ^19 || ^19.0.0-rc"
       }
     },
+    "node_modules/codepage": {
+      "version": "1.14.0",
+      "resolved": "https://registry.npmjs.org/codepage/-/codepage-1.14.0.tgz",
+      "integrity": "sha512-iz3zJLhlrg37/gYRWgEPkaFTtzmnEv1h+r7NgZum2lFElYQPi0/5bnmuDfODHxfp0INEfnRqyfyeIJDbb7ahRw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "commander": "~2.14.1",
+        "exit-on-epipe": "~1.0.1"
+      },
+      "bin": {
+        "codepage": "bin/codepage.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/codepage/node_modules/commander": {
+      "version": "2.14.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.14.1.tgz",
+      "integrity": "sha512-+YR16o3rK53SmWHU3rEM3tPAh2rwb1yPcQX5irVn7mb0gXbwuCCrnkbV5+PBfETdfg1vui07nM6PCG1zndcjQw==",
+      "license": "MIT"
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
@@ -3971,6 +4070,12 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/commander": {
+      "version": "2.17.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
+      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
+      "license": "MIT"
+    },
     "node_modules/concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -3995,6 +4100,24 @@
         "node": "^14.18.0 || >=16.10.0"
       }
     },
+    "node_modules/core-util-is": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
+      "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
+      "license": "MIT"
+    },
+    "node_modules/crc-32": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.2.tgz",
+      "integrity": "sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "crc32": "bin/crc32.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -4308,6 +4431,12 @@
       "integrity": "sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==",
       "license": "MIT"
     },
+    "node_modules/dingbat-to-unicode": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/dingbat-to-unicode/-/dingbat-to-unicode-1.0.1.tgz",
+      "integrity": "sha512-98l0sW87ZT58pU4i61wa2OHwxbiYSbuxsCBozaVnYX2iCnr3bLM3fIes1/ej7h1YdOKuKt/MLs706TVnALA65w==",
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