.LASSO File

The lasso file extension is related to the Lasso, which provides support for industry standards along with its own HTML-like language LDML (Lasso Dynamic Markup Language); a tag-based language for building data-driven Web sites.

It may be integrated into websites created with Dreamweaver or GoLive, or built from scratch using Lasso Professional.

How to open:

Web browser and other tools are able to work with *.lasso files.

How to convert:

Possibly can be converted like any other web page documents.