Importing Participants
"Participant Status ID doesn't match" means the value(s) you are trying to insert into this field do not match the option values defined in CiviCRM.

Both Particpant status and Participant status Id are in the list of possible fields to import. Although the UI indicates that you need to import Participant status Id  I think you can import participant status instead provide the text you import matches exactly with the defined options. 

You could be tring to import values such as 'Registered' or 'Attended' into Participant status Id when it is expecting numerical values  or you could be trying to import a text value into Participant status that is not one of the defined options. (perhaps 'Att' or 'attended' instead of 'Attended')