${_("Importing a new course will delete all content currently associated with your course and replace it with the contents of the uploaded file.")}
## Translators: ".tar.gz" is a file extension, and files with that extension are called "gzipped tar files": these terms should not be translated${_("File uploads must be gzipped tar files (.tar.gz) containing, at a minimum, a {filename} file.").format(filename='course.xml
')}
${_("Please note that if your course has any problems with auto-generated {nodename} nodes, re-importing your course could cause the loss of student data associated with those problems.").format(nodename='url_name
')}