Is it possible to create multiple test suites at once?
One answer
RQMExcelImporter should be able to create that number of test suite in one import.
You may refer to Sample TestSuite with TestCases 001.cfg/TestSuite with TestCases 001.xls to get some ideas on what can be done in creating a testsuite using the tool.
More info on this tool if you haven't tried it before:
https://jazz.net/wiki/bin/view/Main/RQMExcelWordImporter