diff --git a/MANIFEST.in b/MANIFEST.in
index 4778dd65..1951c2fc 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -5,7 +5,8 @@ include LICENSE
 include README.rst
 
 recursive-include tests *
-recursive-include orsopy/slddb/element_table/nabs_geant4 *.npz
+recursive-include orsopy/slddb/element_table/nabs_geant4_data *.npz
+recursive-include orsopy/fileio/schema/ *.json
 recursive-exclude * __pycache__
 recursive-exclude * *.py[co]
 
diff --git a/orsopy/fileio/schema/__init__.py b/orsopy/fileio/schema/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/orsopy/slddb/element_table/nabs_geant4.py b/orsopy/slddb/element_table/nabs_geant4.py
index 4987184a..97ad12e2 100644
--- a/orsopy/slddb/element_table/nabs_geant4.py
+++ b/orsopy/slddb/element_table/nabs_geant4.py
@@ -2,7 +2,7 @@
 Neutron cross sections extracted from Geant4 by the ESS dgcode framework (doi:10.1016/j.physb.2018.03.025).
 """
 
-DATA_DIR = "nabs_geant4"
+DATA_DIR = "nabs_geant4_data"
 NEUTRON_ABSORPTIONS = {
     "Li": "nabs_Li.npz",
     (3, 6): "nabs_Li6.npz",
diff --git a/orsopy/slddb/element_table/nabs_geant4_data/__init__.py b/orsopy/slddb/element_table/nabs_geant4_data/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_B.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_B.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_B.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_B.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_B10.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_B10.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_B10.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_B10.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_B11.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_B11.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_B11.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_B11.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd106.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd106.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd106.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd106.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd108.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd108.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd108.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd108.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd110.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd110.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd110.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd110.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd111.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd111.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd111.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd111.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd112.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd112.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd112.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd112.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd113.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd113.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd113.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd113.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd114.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd114.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd114.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd114.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Cd116.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd116.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Cd116.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Cd116.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd152.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd152.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd152.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd152.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd154.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd154.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd154.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd154.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd155.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd155.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd155.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd155.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd156.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd156.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd156.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd156.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd157.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd157.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd157.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd157.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd158.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd158.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd158.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd158.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Gd160.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd160.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Gd160.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Gd160.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Li.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Li.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Li.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Li.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Li6.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Li6.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Li6.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Li6.npz
diff --git a/orsopy/slddb/element_table/nabs_geant4/nabs_Li7.npz b/orsopy/slddb/element_table/nabs_geant4_data/nabs_Li7.npz
similarity index 100%
rename from orsopy/slddb/element_table/nabs_geant4/nabs_Li7.npz
rename to orsopy/slddb/element_table/nabs_geant4_data/nabs_Li7.npz
diff --git a/setup.cfg b/setup.cfg
index ba2b2ac6..c9e804a7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,6 +29,6 @@ install_requires =
 include_package_data = True
 
 [options.package_data]
-orsopy.slddb.element_table = nabs_geant4/*.npz
+orsopy.slddb.element_table = nabs_geant4_data/*.npz
 orsopy.fileio = schema/*.*
 orsopy.fileio.tests = *.ort
\ No newline at end of file