How to transfer MP3 to my iTunes library?

[comcsoft]

To save MP3 to your iTunes Music library , please follow the steps below:

Step 1: Transfer the MP3 files to your computer.
You can transfer the file through Open In, Email, or through iTunes. We recommend to use Open in iTransfer to send the file to your Dropbox folder. You can also email the file to yourself.

Step 2: Move the MP3 files into your iTunes playlist
Start your iTunes on your computer. Find the files on your computer and add them to your iTunes playlist.

Step 3: Sync music with your iPhone/iPad
Hook up your iPhone/iPad with iTunes. Select your device then click Music. Check Sync Music and select the music you would like to add to your device.