Your XOLO 1X Era sports a microSD memory card slot. If your laptop or personal computer has a slot for that card format (Most laptops are so-equipped), you should be able to transfer a music file
The XOLO Era 1X is an Android smartphone and the Android market offers a bunch of free ringtone apps such as MP3 Ringtone Maker, RingDroid (open source) and more.
Since your XOLO 1X Era has a sound recorder (also known as 'voice memo'), a very straightforward technique involves simply placing your phone nearby your computer's speakers, playing whatever song, music or sound you'd like as a ringtone, and recording it -- you can even use your voice, your child's voice or even your cat's 'meow!' Record it with your phone and 'voilà!' Unless that function was specifically blocked on the XOLO Era 1X, you should be able to navigate to the ringtones section and assign that recording as a ringtone. Of course, the sound quality will not be ideal but, at least, it's free!
Here are some of the free ringtones (compatible with your XOLO Era 1X) we offer:
Free Horror Ringtones Free Ghost Ringtones Free Ringtones-a-gogo Free Techno Ringtones Hear All Our Free Polyphonic Ringtones