{{ __('Upload a CSV file with the following header columns (existing members matched by email are updated):') }}
full_nameemailphoneaddress_line_1 (optional)address_line_2 (optional)city (optional)postal_code (optional)emergency_contact_name (optional)emergency_contact_phone (optional)membership_started_at (YYYY-MM-DD)membership_expires_at (YYYY-MM-DD)