You can use the LIBNAME statement to reference not only SAS files but also files that were
created with other software products, such as database management systems.

SAS can read or write these files by using the appropriate engine for that file type. Depending on
your operating environment and on the SAS/ACCESS products that you license, you can create
libraries with various engines. Each engine enables you to read a different file format, including
file formats from other software vendors.