문서뷰어기능구현

frontend/package.json

@@ -47,7 +47,9 @@
     "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",
@@ -55,8 +57,10 @@
     "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": {