diff --git a/EP1DEMO3.dat b/data/EP1DEMO3.dat
similarity index 100%
rename from EP1DEMO3.dat
rename to data/EP1DEMO3.dat
diff --git a/EP2DEMO1.DAT b/data/EP2DEMO1.DAT
similarity index 100%
rename from EP2DEMO1.DAT
rename to data/EP2DEMO1.DAT
diff --git a/EP3DEMO1.DAT b/data/EP3DEMO1.DAT
similarity index 100%
rename from EP3DEMO1.DAT
rename to data/EP3DEMO1.DAT
diff --git a/EP3DEMO4.DAT b/data/EP3DEMO4.DAT
similarity index 100%
rename from EP3DEMO4.DAT
rename to data/EP3DEMO4.DAT