Are you troubled by the The File Couldn’t Open in Protected View error in Excel?
Protected View is a security utility provided by Microsoft in Excel.
To solve this issue, you’re able to venture to following workarounds.
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Excel files disappeared after saving?
you might find the lost Excel files easily with this guide post.
Step 1: Open one Excel file on your gear, then select theFiletab.

Step 2: ChooseOptionsat the bottom of this window.
Step 3: Shift to theTrust Centertab and click onTrust Center Settingson the right pane.
Step 4: ChooseProtected Viewon the left sidebar.

Then, it’s crucial that you deselect all the options under theProtected Viewsection.
Step 5: ClickOKto save and apply changes.
If not, try the following methods.
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Why is Excel opening in Protected View?
How to take off Protected View in Excel?
How to turn off Protected View completely?

Read and find answers here.
you might unblock this Excel when you ensure its source is trustable.
Step 1: Right-tap on the problematic Excel file and choosePropertiesfrom the context menu.

Step 2: Under theGeneraltab, tick theUnblockoption in theSecuritysection.
Step 3: ClickApplyandOKto sequence to save the change.
Step 1: Open one Excel file and clickFile>Optionsto bring up the parameters window.

Step 2: Go to theAdvancedtab, then it’s possible for you to scroll down to find theDisplaysection.
Step 3: ChooseDisable hardware graphics acceleration.
Step 4: ClickOKto apply the change.

Step 1: Open one Excel file on your system, then navigate toFile>Account.
Step 2: ChooseUpdate Optionson the right pane and clickUpdate Now.
Then, your setup will search andupdate to the latest Microsoft Officeversion.

you could repair the corrupted Office installation to make a run at solve this problem.
Step 1: TypeControl Panelinto the Windows Search bar and hitEnterto initiate the window.
Step 2: ChooseUninstall a programunderPrograms.
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Step 3: Find Microsoft Office from the list and right-choose it to chooseChange.
Step 4: ChooseOnline Repairin the prompt window and clickRepairto fix the problems.
you might check the Recycle Bin and recover the deleted files if found.
Additionally, types of files are supported to recover with this software.
The Free Edition provides you with 1GB of free file recovery capacity.
In this post, we show you multiple solutions that are based on different situations.
Hope this post gives you some useful information to solve the problem.