OpenIMIS is not a code Quality assurance tool therefore in order to ensure that the quality is met before doing a production release third party tool need to be use.
The test case can be defined using gherkin as described in the dedicated page, then it make it easy to deploy them in a Quality assurance tool because the precondition (Given), (When) actions and (then)result are defined.
For the release 1.4.2 of April 2020, the QA platform called Test-link http://testlink.org/ was used, the gherkin test cases are documented there https://github.com/openimis/openimis-gherkin
In order to document the test case with excel before lading them in test-link, those excel macro can be used https://github.com/MrBricodage/TestLink--ExcelMacros
Happy Testing.