Present material from file with images heralding running water (8)

'present material from file' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'images heralding running water' is the wordplay.
'images' becomes 'gif' (I can't justify this - if you can you should give a lot more credence to this answer).
'heralding' means one lot of letters go next to another (some letters come before others).
'running' indicates an anagram (the letters run around to different places).
'water' anagrammed gives 'tware'.
'gif'+'tware'='GIFTWARE'

'with' acts as a link.

Can you help me to learn more?