No need to leave your work place. Just attach it to an email. It will be there within seconds. Remember that the recipient needs the right software to open the attached file you send, and that not everyone uses the same sort of computer and operating system as you. But even if there are incompatibilities, there are ways to get around them.
Firewalls can also cause problems and corrupt some files as they arrive.
However, if you work on documents with other people, attaching a draft to an email and sending it to your colleagues can be a useful and productive way of working. You don't need to be in the same building, city or country - but you can still work together on a project. If you do encounter problems, try sending files using different settings for attachments before you give up. Being able to attach files is a feature of email that is very useful, can increase productivity, and can assist in the development of collective activity which, without that technology, would not be possible. Because email is so easy to use, junk email is easy to send.