Do not worry about either of these. For ease of reading, you may wish to at least put in a space. Unless you have received permission to do otherwise, you MUST use the UW Oshkosh email username as the Bbusername. Email address may be any address, but it is required. The password will also appear in the student's Student ID field.
Passwords are case sensitive.
In Blackboard, go to the course Control Panel, then select Course Utilities in the lower right. Browse to your text file and select it. You will see the entries. If there are any errors in the file, these will be indicated. You will need to correct the text file to fix any problems.