不必要な変更を防ぐのに役立つ、Excelのシートの保護。しかし、いざという時に変更できなくなることも…。今回は、パスワードを忘れてしまった時に、シートのロックを解除する方法をご紹介します。

Whether you use the Excel apps on Windows and Mac or Excel web on a Chromebook, check the top ways to password-protect an Excel spreadsheet.

First, you need to open the Excel spreadsheet and enter your password to access the file. Then, go to File > Info and click on the Protect Workbook option.

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

You can make Excel always open old spreadsheets in Protected View. Enable or disable Protected View using in-built setting, Group Policy, Registry.