To open a data dictionary

Find the data dictionary you want, then open it using Notepad or any other text editor.

The file you see will look similar to the following example:

CellID, ASCII string, 32, 0, Unknown, 
MBRSHP, ASCII string, 12, 0, Unknown, 
MP, ASCII Numeric, 16, 0, Unknown, 
GST_PROF, ASCII Numeric, 16, 0, Unknown, 
ID, ASCII Numeric, 10, 0, Descriptive/Names, 
Response, ASCII Numeric, 10, 0, Flag, 
AcctAge, ASCII Numeric, 10, 0, Quantity, 
acct_id, ASCII string, 15, 0, Unknown, 
src_extract_dt, ASCII string, 50, 0, Unknown, 
extract_typ_cd, ASCII string, 3, 0, Unknown,

You can change information as needed in the file, making sure that the data that will be stored in the associated table can use the parameters you are setting.