Includes description of variables in each column for all sequence files and for the comma delimited version (.csv) of the geography file.

Contains information about how to use the ACS Summary File

Table Shells

Contains table ID, line number, unique ID (table ID + Line Number), stub, and data release

Sequence Number/Table Number Lookup File

Contains information on the relationship between the sequences and the tables

Simplified Geography Files

Contains basic geography information, including LOGRECNO, GEOID, and name, in an Excel file with tabs for the US, as well as each state or state equivalent.  Compared to the standard geography files in .csv and .txt format, these simplified files contain only the geography variables needed to read the ACS Summary File into Excel.