Yes you can. The Unicorn LMS supports the three main eLearning Industry standards: AICC; SCORM; and xAPI (aka Experience API and Tin Can). The most common format used is SCORM but Unicorn LMS treats all of the formats in a similar way.
There is a maximum file size of 330MB when uploading files in to your LMS. Therefore, before uploading AICC or SCORM eLearning content, please ensure that you have packaged it into a Zip file. xAPI also supports importing via a URL to externally hosted content.