You can create online assignments for students to submit their assignments through Canvas.

When allowing file uploads as an online entry option, you can restrict certain types of files for assignment submissions. In the case of restricting assignments with an odd or unusual file type, try adding it to your course to confirm the file is accepted before requesting students to submit the file type.

If your institution has enabled Google Docs, the Google Apps LTI, or the Microsoft Office 365 LTI, students can upload files from their respective Google Drive or OneDrive account directly. (If only Google Docs are enabled for your institution, students must connect to Google Drive as a web service to submit an assignment as a Google Doc, Google Sheet, or Google Slide.) You can allow Google Drive and OneDrive files as submission types by selecting the File Uploads checkbox when creating an assignment.

Google Drive File Types

Students can submit Google Doc (.gdoc), Google Sheet (.gsheet), or Google Slide (.gslide) files. They can also use Google Docs to submit uploaded Word (.doc/.docx), Excel (.xls/.xlsx), PowerPoint (.ppt/.pptx), and PDF files not converted to Google Docs formatting.

When Google file types are submitted as an assignment submission, those files will convert to their Microsoft counterpart file types and appear in the submission as respective Word, Excel, or PowerPoint files. Canvas uses the conversion file type for submissions (and to render supported file types as Crocodoc files in SpeedGrader), so if you want to restrict file types to only include Google file types, you must also include the file types for each respective Microsoft file type as well. For instance, if you want to only allow Google Slide submissions, you must include .pptx as a restrictive file type, otherwise Canvas will not show the .gslide files in the Google Doc tab.

Turnitin File Types

If your institution has enabled Turnitin, you can create a Turnitin assignment. Turnitin accepts various file types and images.