Impossible to upload CSV using Mac

Issue summary: 

I can't upload a CSV using Mac OS in Converting Tool  4.0. If I use the legacy website, it works perfectly.
 
 

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Assigned: 
Anonymous

Comments

Issue changes: 
Project: CSV Converter »
Component: » Code

I would need some more details to understand the error
What is your operating system? Windows/Mac/Linux ?
What is your browser? IE/Safari
Also, Can you send a sample CSV file?