![]() As a result, you should only lock cells in Excel to prevent accidental changes, not to prevent a determined attack. Even if they can’t, passwords are easy to share intentionally or phish. Though Excel versions 2010 and higher use enhanced data encryption mechanisms, a criminal can still bypass them without knowing the password and change payment information or add a malicious link. You should know, however, that Excel’s worksheet protection isn’t designed to stop a determined attack. Once this occurs, users cannot edit, format, or otherwise change cells you keep locked. ![]() The reason that you can still edit them is that you must protect a spreadsheet or worksheet with a password before the behavior kicks in. It may surprise you to hear that cells in Excel are usually locked by default. No matter how proficient you are with the software, it’s easy enough for you or a pet to lean on a key and break your formulas. Locking them means that if anybody has any last-minute additions or corrections, they go through the proper channels to add them.Įven if you aren’t sharing a spreadsheet, learning how to lock specific cells in Excel can save you a lot of trouble. In such a case, the need for those numbers to stay accurate and accountable is important. Often, you’ll be sharing your spreadsheet not for collaboration, but to provide other departments or shareholders with the statistics they need. ![]() We joke about clumsy colleagues breaking spreadsheets, but there are several reasons locking an Excel spreadsheet is a good idea. ![]() Locking cells in Excel – why you should do it 1 How to Lock All Cells in Excel2 How to Lock Specific Cells in Excel3 How to Lock Formulas in Excel4 Extra: How to Password Protect Excel Files5 Extra: How to Password Protect a Folder on Windows ![]()
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