Correct way to express in English that a string is encoded ... using UTF-8 ... with UTF-8 ... in UTF-8?

[Rebecca T via Unicode]

I think that colloquially “the file contains a UTF-8 string” is best, but
perhaps not in more formal communications.

On Wed, May 15, 2019, 7:24 AM Costello, Roger L. via Unicode <
unicode at unicode.org> wrote:

> Hello Unicode experts!
>
> Which is correct:
>
> (a) The input file contains a string. The string is encoded using UTF-8.
>
> (b) The input file contains a string. The string is encoded with UTF-8.
>
> (c) The input file contains a string. The string is encoded in UTF-8.
>
> (d) Something else (what?)
>
> /Roger
>
>
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