Use the online version of Microsoft office suite
to upload your PPT as a network path and embed it through iframe
<iframe id="iframe1" width="800" height="600" frameborder='no' border='0' marginwidth='0' marginheight='0'
scrolling='no' allowtransparency='yes'
src="https://view.officeapps.live.com/op/view.aspx?src=网络地址"></iframe>