Ignore the bot. There are a few ways to do what you're after, my way is:
Upload the video file to your hosting taking note of the path (https://.....) and the name of the file.

In Xara, create a rectangle the size you want the player to be, select it, then Utilities > Web Properties > Placeholder (tab) > HTML Code (body)
Paste in the following:

Code:
<video controls="controls" playsinline controls autoplay disablepictureinpicture 
poster="https://my-domain.com.au/sub-folder/Name-of-Poster.jpg" 
width="100%" height="100%">
<source src="https://my-domain.com.au/name-of-video.mp4" 
width="100%" height="100%" type="video/mp4" />
'Poster' refers to the first image before you press play.
Change the "https://my-domain.com.au/name-of-video.mp4" to the path and name of the video file you uploaded.