How to dump used Unicode Private Area characters into file?

[MIRKOSOFT]

Hi!

I need to dump selected range of Unicode Private Use Area characters of selected font to single text file encoded in Unicode.
I was searching web but nothing found.
I need it in two formats:
{character}{character}... etc.
and
{U+$$$$}{character}

I mean anything like this:

{character} is @ - so @ABC... etc.
and
{U+hexadecimal_value}{character} is {U+E000}@

Is any way to do it?

Thank you for each suggestion.
Miro