Is there a way to download a site's .env file

I’m trying to help a company who have a netlify account resolve an issue with their site. I had admin access to netlify and the source code in their repo but I can’t get hold of the .env file to update one of the secret keys that has expired. Is there a way to access the .env file (not the new environment variables feature) so that I can see what variables exist in the file. I can’t blindly overwrite it with a new deploy because I dont know all of the variable keys that exist or the values

Thank you

Netlify doesn’t read environment variables from .env files. Was the .env file uploaded to Netlify?