Dropbox is easy to use, it’s just a folder that sits in your taskbar and you can share files in it with friends. Open your Dropbox folder and drag any file you want to share into the public folder. Now open the context menu(right click) and select ‘get link’.
Done. Just paste that into an email and send to the people you want to share with.
If you need more help just leave your question in the comment below and I’ll get back to you soon.