How to Specify Acceptable File Types for Assignment Submissions

1.) Next to your Moodle course name, click the gear icon (1) and click 'Turn editing on' (2)

2.) Beside of the assignment name click 'Edit' (1) and 'Edit settings' (2)

3.) Scroll down to 'Submission types' and in the 'Accepted file types' box type in the file types you would like to allow for this assignment

Reference (from Moodle):

• Accepted file types can be restricted by entering a comma separated list of mimetypes (examples: video/mp4, audio/mp3, image/png, image/jpeg), or file extensions including a dot (examples: .png, .jpg, .ppt, .doc). If the field is left empty, then all file types are allowed.