Requirements for the Best Visio Viewer for Macĭisplay Visio files correctly: First of all, one of the important requirements that the Visio Viewer must have is the ability to correctly display Visio files, including example diagram relationships, shape formats, hidden layers and subordinate layouts, etc., to ensure the accuracy and integrity of the Visio file content. Visio Viewer for Mac Alternatives: Comparison Chart and Reminder.Factors to Pick a good Visio Viewer for Mac.Here we have selected and reviewed 6 powerful Visio viewers for Mac, you may also find instructions on how to utilize them. But Microsoft Visio for Mac has never been released, so how do we open Visio files on Mac? The good news is that Visio viewer for Mac is now available. Visio is exclusively available for Windows, and we can easily view a Visio file in Visio on a Windows PC.