Is there any way to embed files in Keynote presentation? So, that others can click on it and download/open it in their machines.
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Besides images or other media that can natively be placed into Keynote, for a document or binary file of arbitrary format, you would almost certainly have to post it elsewhere (Dropbox/Google/web page) and embed a URL to the sharing link in your presentation.
Unfortunately, it seems you can't make the URL have the format of file:// instead of http:// You can, however use ftp:// or sftp:// or smb:// !
