Today I was trying to send a file inside my network, but was too lazy to download and updated it to any storage service (GDrive, Dropbox). Then I realized that python offers you a HTTP server in one line command. So here is my tip:

$ cd directory # where is your file
$ python -m SimpleHTTPServer 8000
=> Serving HTTP on port 8000 ...

So now your computer is serving all files in the directory at . Just make sure the computer that want to access it has firewall allowed.