Audio file to email export

i have created a track in cubase 12 pro and exported it to my desk top…i saved is it as wave form file.
i sent it to my friend ,i emailed the same song file ,but he is unable to open it for hearing it ,can anyone help plz


How did you set the Export Audio Mixdown up, please?

i found the file in the audio folder ,it was in mp3 format.
the wave file was in the folder that i created. now its okk ,thank u …