diff --git a/src/App.tsx b/src/App.tsx
index a5a9129..1c6c943 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,5 +1,7 @@
 import React, { useState, useMemo, useEffect } from 'react';
 import * as XLSX from 'xlsx';
+import { X } from 'lucide-react';
+import { cn } from './lib/utils';
 import { AppState, ExcelRow, resolveColumnIndices, COLUMNS } from './types';
 import { ColumnsProvider } from './contexts/ColumnsContext';
 import { Sidebar } from './components/Sidebar';