Vextend are 3rd Party Chrome Extensions for Lightspeed POS (X-Series).

Vextend Office in Chrome Web Store: Take control of label printing with in-depth options, and manage stock control better with formatting order printing, tools for receiving orders quicker, and Super Import which allows items to be created and updated automatically when importing a stock order.	While Vextend Sell has been discountinued (learn more), Vextend Display has taken it's place as replacement.
Vextend Office Help Files	Vextend Display Help Files Free Trial/Subscribe

Yes, this info site is very boring (not fancy layout) because the extensions themselves gets the effort.

Vextend plugins are 3rd party and are not created, endorsed by, nor supported by Lightspeed (although they are aware of them and think they are pretty cool). Vextend Extensions are a product under the ownership and management of Corn Mazes America LLC.