Hello,
My name is Deniz, I am a senior web developer. I can write you a simple script which lets you import CSV files to your WooCommerce website. So, it means that if you have new CSV files in the future, you can use this for free.
I have 10+ years of experience with PHP, CSS/HTML, JavaScript, MySQL and WordPress (also WooCommerce). Please send me a message to discuss the details.
Thank you.