Final answer:
Multi-step web tests in Application Insights are scripted using XML files, which allow monitoring of complex website user interactions.
Step-by-step explanation:
The type of file used to run multi-step web tests in Application Insights is an XML file. Application Insights is a feature of Azure Monitor, designed to help you monitor the performance and availability of your web applications. Multi-step web tests simulate a sequence of actions, like a user navigating through a website, and these tests are scripted in XML format.
This script describes the sequence of web requests to perform, along with the expected responses, allowing Application Insights to monitor complex scenarios such as checking out a shopping cart or signing in to a web app.