Convert a simulink file to previous version

Hi,

I would like to convert a simulink file to a previous version from the software, but unfortunately I am not in hand of the current version in this machine. May some of you convert it to me? The "from" version is "2018a" e the "to" version "2015a"

I would be thankful for the help.

Best regards,

Bruno

[Yakshraj]

its easy you just open this slx file in simulink and just click on save option left upper side and choose previous save this(below option after clicking save), then choose your desire version to convert. done!