Hi there,
It can actually be done so easily with Python; it will take me only few hours to write script to read excel data and write it to CSV. You will also not lose any sorting/arrangement. I have done so much work with excel and CSV files. So you will get your work done without any hassle. I am so excited about your project, please. I don't want to miss it.
I will send first few rows of your excel in CSV as a sample, before you hire me, if you wish.
Can you trust and leave your project to me?
Best regards,
Ishaq