@patricia.a.lopes1,
You can’t make AJAX requests to the local filesystem due to security issue. As a workaround, you can store the file on a local webserver and make an AJAX call to it or you can store the JSON in CORS enabled JSON hosting service like myjson.com. Please take a look at this tutorial on rendering charts from JSON API using AJAX.
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Priyanka M S
Team CanvasJS
