Utility Tool to Export Azure DevOps (formerly called Microsoft Team Foundation Server/TFS) Test Suites, Test Plans and Test Cases with all steps well organized into one Excel sheet (or one sheet per Test Suite, if multiple suites or sub-suites are exported):

See also the Open Source Project from GitHub (formerly CodePlex Archive) : https://github.com/bamajap/TestCaseExport/tree/master/src/TestCaseExport