Test Execution Results are Incorrect and While importing all steps are not getting imported

Regarding the import issue, I can only guess at what might be the problem.  I would trial and error the import one of those problem test cases in a separate file.  You could remove steps from the test case until you get it to import successfully.  Once you've identified which step is causing the problem, take a look in that cell for anything unusual that could be causing the import process to fail.

Or... you could try SmartBear support at the link I sent in the previous message 🙂