Mapping to skip first record

Hi there experts!

I have an interface that reads a file that is formed by a number of items like <item> fields... </item>

The first item in the file is one that is 'self explanatory' and has the names of the fields, not the actual info. I need to skip that item (always placed first in the file) and cannot skip it via Content Conversion since it's a receiver channel.

If I put an if like if <item> field value not equals real_value do not match to target the mapping raises an error. How could I achieve this functionality? any hint?

Thanks in advance!

cheers,

Edu