The file size limit for uploading and hosting an item in Canvas Files is 500 MB. For sharing videos we recommend that you use Kaltura to upload and host your video, and then embed it or link to it in your Canvas site.

Further resources:

• Overview of the Kaltura Video App for Canvas
• Kaltura Video App for Canvas User Guide (Creating New Media: Upload videos - scroll down to p. 15)
• Kaltura Video App for Canvas User Guide (Publishing Media to a Media Gallery - scroll down to p. 29)
• Kaltura Video App for Canvas User Guide (Managing a Media Gallery - scroll down to p. 28)