Which phone are you trying to copy from?
If you were looking for the location to store the ringtones on the M9,using a file explorer,go to SYSTEM > MEDIA > AUDIO > ALARMS.
The file system/location on your previous phone should be similar.
If you're not rooted,you may not have access to that file.
Should that be the case,I'd recommend asking around in that particular device forum (the root section to be exact) & see if someone will share those files w/you.