You are attempting to open a file type visio 2000 trust center. Click OK two times. I made an attempt to fix the error by following these instructions: I have gone to the file block settings and checked the box to "open" but you can see below the "open behavior" settings are greyed out. You are attempting to open a file type (Visio 2000-2002 Binary Drawings, Templates and Stencils) that has been blocked by your File Block settings in the Trust Center. Method 1: Unblock the file type in the Trust Center. Click the File tab. Click Trust Center, click Trust Center Settings, and then click File Block Settings. This error happens whenever I open Visio or when I get it open trying to drag any stencil onto the page. In VISIO 2021 Standard, build 2203 on Windows 11, I am unable to open older client binary files due to settings in "Trust Center". You are attempting to save a file type <File Type> that has been blocked by your File Block settings in the Trust Center. Click Options. Resolution To resolve this issue, try the following general resolutions to change the File Block settings to disable the restriction of certain file types: Method 1: Unblock the file type in the Trust Center. Clear the check box for the file type that you want to open or save to. How to fix the error that occurs when opening files created with an earlier version of Microsoft Visio by changing the file block settings on the Trust Center. Instructions for previous versions of Visio say to use the "file" tab. Click the File tab in Visio 2013, and then click Options. Resolution To resolve this issue, try the following general resolutions to change the File Block settings to disable the restriction of certain file types:. oolsr qpg eocni axxvzr zwegw abjnw zspdcy veb gdhg tjbtwa