There could be several reasons why your import isn't working. Please make sure you have followed the instructions closely and that all company and round names appear exactly the same across all sheets. If any of the required fields are missing, you may also receive an error message. Please note that you may only import 60 rows of data per sheet at one time, so if you exceed this number, your import will not be successful. In this case, split the data into multiple sheets and try re-importing them separately.
For help, you can also watch this short vide tutorial: