CAMA Exports The County of Berks provides full extracts from the County of Berks Assessment System (CAMA). They are full extracts of all current records in the following files: Master CAMA File; Residential CAMA File and Commercial CAMA File. These files are accessed at the Berks County Data Hub. File extract dates are noted in each item's summary page and the file can be downloaded in multiple formats. For questions regarding these files please contact the Assessment Office at (610) 478-6262 or email@example.com. CAMA Data Dictionary -- This file outlines the metadata and field definitions for all of the CAMA exports and provides details about coded values for various CAMA fields.