Audio > Audio on My PC" to insert the converted Spotify music file you want to use from the pop-up window. Canva does have better features in some sense. To delete an audio file: Select the audio file you want to delete, then press the Backspace or Delete key on your keyboard. Canva – a fast and super simple free online tool to easily create slides. Adding HTML5 audio to your canvas presentation on the desktop is simple—just include an