You can restrict the file type for assignment submissions. For example, if you would like your students to only upload Word documents for grading and not any other file type, such as a PDF or a PowerPoint (PPT), you can specify the file extensions for Microsoft Word documents, such as doc and docx, in the Restrict Upload File Types field of the Submission Type settings.

If you are allowing multiple file types, separate each extension name with a comma. For instance, if you want to allow doc, docx, and PDF (but not cloud submissions from a URL), type doc,docx,pdf.

To allow students to type a response, you can select either the Text Entry option in the Online Entry Options selection box or type the file extension txt in the Restrict Upload File Types field.

Notes:

1. Allowing file uploads (PPT, Doc, and PDF, etc.) for assignment submission and grading provides an inline file preview in the SpeedGrader for easy markup and adding feedback comments without downloading the document to your device.
   
    
2. How do I grade a text entry submission in SpeedGrader?
    
3. You can use the Text Entry option to allow students to type in their submission. The text entry option can be especially useful for short essay-type questions, open-ended quiz questions, and survey responses. Note that the text entry option does not support inline text preview when using the markup tools to provide feedback. 
   
   Note: For Text Entry submissions, instructors should advise students to complete their initial work in another text editor or note-taking app and then copy/paste the content into the Canvas assignment page. Canvas is subject to page refreshes and timed logouts, which may cause a student to lose their work if they complete their writing directly in Canvas.