Spreadsheet Spelling Error Highlighter

I have an Excel workbook that needs a sharp set of eyes on it. Your sole mission is to scan every text cell for spelling mistakes—no grammar, punctuation, or formatting changes—then highlight the cells that contain errors instead of editing the values directly. The file carries several thousand rows spread across multiple sheets, so solid command of Excel’s search or spell-check functions, plus a good manual review habit, will help you move quickly and accurately. When you return the file, I should see: all original data untouched, only the problematic cells marked with the highlight color we agree on, and nothing else altered. If you’re meticulous, comfortable working in spreadsheets, and can turn this around promptly, let’s get started.