Thanks a lot Christine for helping in resolving the importing of test case issue.
Following steps were carried out:
I was mapping excel and PractiTest columns wrongly.
Expected mapping is:
If you have excel with columns A, B, C, D, E, F, G, H,I, J with Testcase name, author, description, step name, step desc, step actual results, customer, module, test level, test type respectively, then while mapping in PractiTest provide actual column name.
If PractiTest has mandatory fields in the project under test case then add them to excel and provide the necessary values
If the excel has column A with test case name then in PractiTest provide A under Name field
If the excel has column C with test case description then in PractiTest provide C under Description field
Once again, thank you so much Christine for sorting out my importing of test cases issue.