Do you know how to create scripts at all yourself?
The basic script wouldn't be that complex, but it's not something you can just import into your file and use it. Either you or that consultant would have to take the actual file and modify it by adding a script to it.
Here's a general outline of a script that exports all images from all records in a given table in Filemaker to a folder named "images" on your desktop:
Show All Records
Go To Record/Request/Page [first]
Set Variable [$Path ; value: "File:" & Get ( DesktopPath ) & "/Images/" & YourTable::imageNameField & ".jpg" ]
Export Field Contents [$YourTable::YourField ; $Path ]
Go To Record/Request/Page [next ; exit after last]
This only exports one image file per record, but to export additional fields from the same record simply requires adding additional pairs of Set variable and export field contents steps for each additional field. (Each needs a unique file name so each needs it's own $Path type variable here.)