With all of these options, you will connect as usual using File Sharing, so first be sure this is enabled in the Sharing pane of System Preferences, and that the appropriate users are given access to resources on your system. Enable File Sharing on at least one of the systems you are transferring files to or from.
#Mac file sharing over wifi mac
In that case, you can make use of up to three other supported options that should be available on most Mac systems. Given the prevalence of Wi-Fi devices, Wi-Fi has become the default connection option for many devices however, unless you have the latest 802.11ac Wi-Fi technology on all your devices (and your router), then you will be stuck running at slower speeds. Most of the connection options available will still use file sharing, with the exception that you make use of faster ports on your Mac.
To do this you might consider simply enabling file sharing on one of the systems, and then connecting to it from the second computer over whatever network connection you are currently using however, in doing so you may end up using a relatively slow Wi-Fi connection that could take hours to complete, when with a small amount of effort you can transfer the data in a fraction of the time.
If you need to transfer a file or two from one Mac to another, you may use a service like Dropbox, or copy them to a USB drive and move them manually however, there are some built-in options that can be substantially faster, especially if you are transferring large amounts of data up to numerous gigabytes.