Go1 accepts various file types depending on the content type:
Documents:
DOC, DOCX, DOTX, PDF, POT, POTM, POTX, PPS, PPSM, PPT, PPTM, PPTX, RTF, XLS, XLSX
Videos:
MP4 files or embedded YouTube/Vimeo links
Images:
PNG, GIF, JPG, JPEG
Audio:
MP3, OGG, WAV
Interactive content:
SCORM, Tin Can (also known as xAPI), AICC, and CMI5 (uploaded as .zip files)
File size limits apply: SCORM (5GB) , Documents (40MB), Images (10MB), Video ( 5GB ) and Audio (5GB).