WordPress by default allow users to upload the following file types only Images .jpg .jpeg .png .gif Documents .pdf (Portable Document Format; Adobe Acrobat) .doc, .docx (Microsoft Word Document) .ppt, .pptx, .pps, .ppsx (Microsoft PowerPoint Presentation) .odt (OpenDocument Text Document) .xls, .xlsx (Microsoft Excel Document) Audio .mp3 .m4a .ogg .wav Video .mp4, .m4v (MPEG-4) .mov … Continue reading Allow More File Types to Be Uploaded via WordPress