People turn to manual Flat File exchange because it is common and ubiquitous, cost-effective, and suit several purposes in an uncomplicated way.
Often, there is also the inability of other systems to configure with YouTestMe, or the incongruency within different networks, YouTestMe team has resolved this issue with several institutions and has a large number of configurable flat-files templates to support any standard. (A large number of templates that it supports, as well as the ability to adjust new templates.)
It is often the case that test frames/ shells are created in one system, while testing sessions are scheduled and users created in another, and then after the tests are completed, the results are exported as files to a format supported by an external system.