WP All Export automatically detects the ACF fields in the posts you've chosen to export. Drag and drop fields from the Available Data › ACF section into the export editor on the left.
The following ACF text fields are available to be exported: Text, Text Area, Number, Range, Email, URL, and Password. Here's more on each field:
Text: Exports a string or static text. Text Area: Exports a longer string or static text.Number: Exports a numerical value. Range: Exports a numerical value within a range. Email: Exports an email address. URL: Exports an URL. Password: Exports a password.