Last updated: 6/9/2026
The content of the QEXT file defines what is visible when previewing the visualization extension in Qlik Sense.
This is what you define in the QEXT file:
{
"name" : "Hello World",
"description" : "Hello World example",
"icon" : "extensions",
"preview": "helloworld.png",
"type" : "visualization"
}This is how it is displayed in the Preview dialog:
Legend:
- A: name definition.
- B: preview definition.
- C: description definition.
- D: icon definition.