HEIF format not working in file upload

Hello

Appreciate any help as I am new to wordpress

I have a page to allow users to upload multiple files. I am using multiple file upload plugin for contact form 7.

Right now the users are not able to upload photos taken from an iphone. I tried including heic/heif format but still the same error.

I am looking for a workaround for this as this is crucial for our application.

Thank you and have a great day.