I have a 200 KB MS Word document and insert a 800 KB MS Visio document into it, giving me an 8500 KB MS Word document. I’ll update this post if I ever find out what the other 7500 KB was needed for.
Microsoft Word has a way of making disk space magically disappear: Start with an 89 KB Word Document. Insert an object, a 3675 KB Visio Document. End with a 22,380 KB Word Document. Amazing!