diff --git a/src/mocca2/parsers/chemstation.py b/src/mocca2/parsers/chemstation.py
index 2333b41..e242062 100644
--- a/src/mocca2/parsers/chemstation.py
+++ b/src/mocca2/parsers/chemstation.py
@@ -3,15 +3,15 @@
 
 from mocca2.classes import Data2D
 
-def parse_chemstation(path) -> Data2D:
+def parse_chemstation(path, encoding='utf-16') -> Data2D:
     """
     Chemstation read and processing function.
     """
 
     if os.path.isfile(path):
-        raw = np.genfromtxt(path, delimiter=',', encoding='utf-16')
+        raw = np.genfromtxt(path, delimiter=',', encoding=encoding)
     else:
-        raw = np.genfromtxt(os.path.join(path, 'DAD1.CSV'), delimiter=',', encoding='utf-16')
+        raw = np.genfromtxt(os.path.join(path, 'DAD1.CSV'), delimiter=',', encoding=encoding)
 
 
     time = raw[1:,0]
diff --git a/src/mocca2/parsers/wrapper.py b/src/mocca2/parsers/wrapper.py
index d69f289..c77f56d 100644
--- a/src/mocca2/parsers/wrapper.py
+++ b/src/mocca2/parsers/wrapper.py
@@ -5,7 +5,7 @@
 from mocca2.parsers.chemstation import parse_chemstation
 from mocca2.parsers.labsolutions import parse_labsolutions
 
-def load_data2d(path: str, format: Literal['auto', 'empower', 'chemstation', 'labsolutions'] = 'auto') -> Data2D:
+def load_data2d(path: str, format: Literal['auto', 'empower', 'chemstation', 'labsolutions'] = 'auto', encoding = 'utf-16') -> Data2D:
     """
     Loads empower/chemstation/labsolutions file, returns 2D data
 
@@ -31,7 +31,7 @@ def load_data2d(path: str, format: Literal['auto', 'empower', 'chemstation', 'la
         if path.lower().endswith('.arw'):
             data = parse_empower(path)
         elif path.lower().endswith('.csv') or path.lower().endswith('.d'):
-            data = parse_chemstation(path)
+            data = parse_chemstation(path, encoding=encoding)
         elif path.lower().endswith('.txt'):
             data = parse_labsolutions(path)
         else:
@@ -39,7 +39,7 @@ def load_data2d(path: str, format: Literal['auto', 'empower', 'chemstation', 'la
     elif format == 'empower':
         data = parse_empower(path)
     elif format == 'chemstation':
-        data = parse_chemstation(path)
+        data = parse_chemstation(path, encoding=encoding)
     elif format == 'labsolutions':
         data = parse_labsolutions(path)