Export table name and attributes

I have interesting migration issue where should help a lot if ADS could do:

1) export selected tables name do separate xls files, named by table name (example: persons.xls)

2) every file's first row contains atribut name + datatype + nullable + PK/FK (example: name[VARCHAR2(20) NOT NULL]; surname[VARCHAR2(20) NOT NULL]; personId[NUMBER(10,0) NOT NULL PK])...

Has ADS some export like this?