# init(contentsOf:usedEncoding:) Returns an @c NSString object initialized by reading data from a given URL and returns by reference the encoding used to interpret the data. ``` convenience init(contentsOf url: URL, usedEncoding enc: UnsafeMutablePointer?) throws ``` ## Parameters `url` The URL to read. `enc` Upon return, if the URL is read successfully, contains the encoding used to interpret the file at @c url. ## Return Value An @c NSString object initialized by reading data from @c url. Returns @c nil if the URL can’t be opened or there is an encoding error. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)