Tabular modeling natively supports the import of files with extensions of text (
.txt), comma separated values (
.csv), and tab separated values (
.tab). Once a file to import has been defined, the user can specify the delimiter (column separator), and the importing interface scans the file to estimate the underlying data types for each column. Finally, the interface finishes the import process by loading the data according to this specification.
A text file to simulate the output file for the sales record header has been created and is available from the online resources for this chapter. This file includes the