When opening an old Word document, a newer version of Microsoft Word may report "Error: [Filename] uses a file type that is blocked from opening in this version". EnvironmentThis article applies to those trying to open Microsoft Word documents from old versions of Microsoft Office. Some older versions of Word documents cannot be opened in Word 2016 or newer. CauseFile Block prevents outdated file types from opening and causes your file to open in Protected View and disables the Save and Open features. The code used to open and save the older formats have vulnerabilities that hackers can exploit. So they are security risks that should be avoided, if possible. ResolutionThe steps to take for working through this error are to 'Recover Text from any file' from within Microsoft Word. 1 - In Microsoft Word, click the File menu, click Open. You will most likely have to go through the document(s) and update the formatting which was lost due to the 'Recover text' process. When you try to open any office file documents created with an earlier version of Office applications like Word 95, Word 6.0 or Word 2, the file will open in 'Protected View' by default and the editing functions will be disabled.
Though it is not recommended, but if you face such issue and still want to open the document for editing, you can follow the steps mentioned here.
'File Block' prevents outdated file types from opening to reduce the chance of being exploit to hackers. In some cases it causes your file to open in 'Protected View' and disables the 'Save' and 'Open' features of the opened document. This is to avoid the security risks of being vulnerable, due to the code that's being used to open and save the older formats.
In such cases, you may notice the following messages prompt by Microsoft Office applications:
The following are examples of the Message Bar for 'File Block'. When you see the message with a 'Yellow Shield', it indicates that the file can be edited in protected mode. When you see the message with 'Red Shield', it indicates that the file can’t be edited and thus the 'Save' button will get disabled. The error message will appear, if the File Block settings configured by you or your administrator are set to Do not open selected file types.
File Block SettingsYou can configure how the 'File Block' will work, by making changes to the 'File Block settings' of the Microsoft applications. This is generally done in the Trust Center of the application. To open the settings page:
In this page, you can also modify the open behavior of the selected file types. There are three kinds of options available for you to choose:
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