今日のワークハック：保護がかけられたExcelファイルを、パスワードなしでロック解除する Googleスプレッドシートを使う マクロや高度な関数を使わないなら、十分に使えると言っていいレベルまで来たGoogleスプレッドシート。

Whether you’ve forgotten the password or received a protected file from someone else, unlocking an Excel spreadsheet without the password may seem like an insurmountable challenge.

Learn how to unprotect Excel sheets or workbooks without a password using this simple step-by-step guide. No software required!

A recommended approach to secure your most private documents — whether it's a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode.

It is specifically designed to help users unlock PDF/Word/Excel open passwords without compromising file integrity.

If you have sensitive data you'd like to keep from prying eyes in a Microsoft Excel file, the easiest way to protect it is with Excel's built-in password tools.