You can upload your data as an excel file.
It should have two sheets named "NODES" and "EDGES"
NODES column names must be:
id, name, type, info, value (the last two are optional)
(value sorts nodes on a horizontal line;
info is shown when node clicked)
EDGES column names must be:
source, destination, relation
see example files:
name your file to access later
select your excel file