What type of input data do you wish to use? The default is the standard text,
white-spaced-delimited (tab and/or space) PED and MAP files. The required format for PED
and MAP files is described in the main PLINK website. Binary filesets are compressed to
load faster and require less disk space. You can convert a PED/MAP into a binary fileset
by selecting the
Create binary fileset data management option on the
next page (but still select PED/MAP file on this page).