You will be shown the standard Macintosh Open File dialog. You
can add a single file by opening that file directly. If FlowJo determines
that this is an FCS file, it will read it in and add it to the current
group.
Alternatively, you may select a folder and click on the button
"Add all files in folder". FlowJo will then look at every file in
the folder you specify. If it is an FCS file, it will be added to
the workspace. In addition, FlowJo will create a new group that
has the same name as the folder you selected; the files you just
read in will be added to the folder. This way you can add an entire
experiment at once!
Finally, if you select the button "Add all files in all folders",
then FlowJo will look within the folder you select and (1) add all
FCS files in that folder; (2) search within each folder contained
therein for FCS files and add them; and (3) continue this search
as deep as possible (i.e., looking for data in folders within folders).
Each time a data file is encountered, FlowJo will create a new group
with the name of the folder that the data file is in and put the
data file in that group.