Problems compressing/Zipping a file

Hi Guys,
I'm having some issues Zipping up a file - I need to upload a file and the maximum capacity for the file to be uploaded is 200mb. Its part of an online course that I'm taking and all project submisions need to be in today - I can't figure out what the problem is because theres a few of us taking the course and they have all managed to compress and zip up their files to an appropiate size yet every time I try and compress/zip mine (which is the same file that every one else has) the smallest file size I can manage is 369mb when it needs to be less than 200mb - Can any one please help or shed some light on this - It would be greatly appreciated.
Look forward to some ideas - Bes Regards, Lillyman

Its an Ableton Live Project File  -  The format is .ALS
Sorry guys should have mentioned this in the first place.
Thanks,
Lillyman 

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