Parse CSV file in flow headser

I am using your product in Microsoft flow to parse csv files. Our vendor provides csv headers that include superscript characters like this PM2.5(mg/m³)
Everything appears to work fine, but when trying to use that parameter later in the flow there is no value. I have asked the vendor to change the headers but they are unable.
Can you advise how I can fix in Microsoft flow.

Hi @Benjamin_Stewart,

Could you share the csv document, the headers example and the Parse CSV action screenshot? I'll try to reproduce the issue on my side.

Best regards,
Petr Bushuev
Plumsail team