As a Webex Webinars host or cohost, you can upload files to be available to attendees before a webinar. Attendees can download these files from the webinar information page to prepare for the webinar or complete work in advance.
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Supported file types are Microsoft Excel, Word, and PowerPoint, .pdf, .csv, .txt, .jpg, .png, .gif, .svg, .mp4, and .mov.
After scheduling a webinar, select Calendar, then select it from your upcoming webinars.
In the Webinar materials section, select Edit, then drop your files into the window or select Choose file to browse for the files.