Html basic elements: images

Hey there, about adding images to my web content. Now what if I want to add diagrams created via Microsoft Word, Access, powerpoint e.t.c how do I go about? and what elements should I use to make it look as neat as possible?

the easier solution would be to simple export the data to something that web browsers support:

of course some of the processes might be automated with programming languages, or maybe an API provided by microsoft or that specific microsoft product. But you would need to look at each specific case to see what is best.