Windows only: Donationware Excel plug-in Excel Password Remover strips the password protection from Excel workbooks and spreadsheets so that next time you're working late and your co-worker locked ...

Alternatively, check workbook protection directly. Click "Tools" from Excel's menu bar, click "Options" and click the next window's Security tab.

You don’t need to manually re-enter Excel spreadsheet data in another workbook. Learn how to copy a worksheet to another workbook here.