Essentially these are a way of linking files to field values. These can be pictures, multimedia files, pictures, anything. You load them in the form of an "info" table.
The table takes the form of two columns - one is the field that already exists, that you are linking to and the other is a path containing the file.
Product image bananas c:\banana.png apples
In the example above, we can link the products apples and bananas to their images.
To recognise a table as an info table, put the word "info" before your load statement. To quote the helpfile:
The syntax is:
info ( loadstatement | selectstatement )
Info Load * from flagoecd.csv;
Info Select * from infotable;
Info Select Key, Picture From infotable;
Does this help?