How To Fix Excel File Couldn'T Open In Protected View

This essay published by organization is a đánh giá on Microsoft Excel Protected View. It elaborates on what’s Protected View, why files xuất hiện in Protected View, và how to khuyến mãi with it? More importantly, you can learn how lớn completely delete Protected View for Microsoft Office files.

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Tip: Though this post is based on Excel Protected View, it is also applied for Word Protected View & PowerPoint Protected View.

What Is Protected View?

Protected View is an isolated sandbox environment for Excel, Word, và PowerPoint. It is offered by Microsoft Office to replace the former Isolated Conversion Environment. Protected View is a read-only mode where most editing functions are disabled.

Protected View is available for Office 365, Office 2019, Office 2016, Office 2013, và Office 2010. Yet, if you are using Office versions older than 2010, you are able to lớn upgrade from the Isolated Conversion Environment lớn the Protected View.

Why Use Protected View?

Files coming from the internet or other potentially unsafe locations may contain malware, spyware, adware, ransomware, viruses, worms, trojan, etc. That will attack your computer. Therefore, to prevent PC from those attacks, those files are opened in the read-only mode or in Protected View.

In Protected View, you are able to read a file và enable editing while reducing the chance lớn be infected, hacked, or hijacked.

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Protected View Cases

When will you encounter Protected View errors? Which kind of file will be opened in Protected View? Just as mentioned above, in these situations, you may receive a message of Protected View.

Case 1. A file is opened online

“PROTECTED VIEW Be careful – files from the internet can contain viruses. Unless you need lớn edit, it’s safer to stay in Protected View.” (yellow warning)

Case 2. A tệp tin is opened from an unsafe location

“Protected View This file was opened from a potentially unsafe location. Click for more details.” (yellow warning) The unsafe location can be your Temporary mạng internet Files folder.

Case 3. A tệp tin is an Outlook attachment và your computer policy defines the sender as unsafe

“PROTECTED VIEW Be careful – thư điện tử attachments can contain viruses. Unless you need to edit, it’s safer lớn stay in Protected View.” (yellow warning)

Case 4. A tệp tin is blocked by tệp tin Block

“PROTECTED VIEW Editing this tệp tin type is not allowed due khổng lồ your policy settings. Click for more details.” (yellow error)


“PROTECTED VIEW Editing this file type is not recommended due khổng lồ your tệp tin Block settings in the Trust Center. Click for more details.” (yellow warning)

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Case 5. Tệp tin validation failure

“PROTECTED VIEW Office has detected a problem with this file. Editing it may harm your computer. Click for more details.” (red error)

Case 6. A file is opened from others’ OneDrive storage

“PROTECTED VIEW This tệp tin is from someone else’s OneDrive. Unless you trust this person and want khổng lồ continue collaborating with them, it is safer to lớn stay in Protected View.” (yellow warning) You may encounter such A warning message when someone shares an OneDrive tệp tin with you.

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Case 7. A file is opened using the “Open in Protected View” option

“PROTECTED VIEW This tệp tin was opened in Protected View. Click for more details.” (yellow warning)

Tip: Administrators have access khổng lồ specify the danh sách of potentially unsafe locations to include additional folders they think unsafe.

Besides, sometimes the Protected View message appears for files that are damaged in the following situations:

An unexpected error occurred while copying the file to your PC. This error can be caused by a problem with your internet connection.The file is created or edited with a problematic program.The file-located disk is damaged.The way Office looks for dangers in a tệp tin is wrong.

What Office file types can cause file-validation errors?

Word 97-2003 (.doc, .dot)PowerPoint 97-2003 (.ppt, .pot, .pps, .ppa)

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Excel Turn off Protected View

If you trust the files và want khổng lồ edit, save, or print them, you can vì Excel disable Protected View. Then how to lớn get out of Protected View in Excel?

Way 1. Remove Protected View Excel from Yellow Message Bar

On the yellow warning message banner, exit Protected View by clicking Enable Editing.

Way 2. Excel Disable Protected View for Red Message Bar

Remove Protected View from Excel by clicking File on the upper left & select Edit Anyway.

How to lớn Change Excel Protected View Settings?

How khổng lồ alter the Protected View Settings lớn stop Excel from opening in Protected View once & for all? Just do like this.

Step 1. Mở cửa an Excel file and click File > Options.

Step 2. In the new Excel Options window, click Trust Center > Trust Center Settings.

Step 3. In the next Trust Center window, choose Protected View in the left menu.

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Step 4. Now, specify your settings.

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Anyhow, you are recommended to lớn edit the document only if you trust its contents. Otherwise, it’s safe lớn stay in Protected View!