Test case sessions are stored internally in Fiddler .saz format. A session .saz file is a part of the test. It can be used with comparable programs.
Additionally, test case sessions can be exported as an HTTP archive (.har).
Info: HAR format is owned by W3C (see HTTP Archive (HAR) format). It is adopted by all major web browsers and many web metering and performance tools , listed here.
To save test case sessions as an HTTP archive, in Managing Test Case(s) section, right-click a test case and select Export Test Case.
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