: Where did you see this name (e.g., a specific GitHub repo, a forum like Stack Overflow, or a download site)?

The term "VISO" is a common typo for . Several third-party scripts and plugins exist to convert .vsd or .vsdx files into interactive HTML formats.

"VISO" may be the name of a niche or proprietary HTML/CSS framework, dashboard template, or UI kit (Version 2.0).