diff --git a/operators/spreadsheet.py b/operators/spreadsheet.py
index 243db79..a9fcfd7 100644
--- a/operators/spreadsheet.py
+++ b/operators/spreadsheet.py
@@ -133,7 +133,7 @@ class VSETB_OT_spreadsheet_from_file(Operator):
 
             from openpyxl import Workbook
 
-            workbook = openpyxl.load_workbook(filepath, read_only=True)
+            workbook = openpyxl.load_workbook(filepath, read_only=True, data_only=True)
             sheet = workbook.active
         
             rows = [(c.value or '') for r in sheet.rows for c in r]
@@ -142,7 +142,7 @@ class VSETB_OT_spreadsheet_from_file(Operator):
             self.report({'ERROR'}, f'File extension {filepath.suffix} should be in [.csv, .xlsx]')
             return {'CANCELLED'}
 
-        rows = [r for r in rows if any(r)]
+        rows = [[(c.value or '') for c in r] for r in sheet.rows]
 
         cell_types = project.get_cell_types()
         for cell_name in rows[0]:
@@ -526,7 +526,10 @@ class VSETB_OT_export_spreadsheet(Operator):
         rows = []
 
         # Header
-        rows.append([cell.export_name for cell in cells])
+        if spreadsheet.use_custom_cells:
+            rows.append([cell.export_name for cell in cells])
+        else:
+            rows.append([cell.name for cell in cells])
 
         separator = spreadsheet.separator.replace('\\n', '\n').replace('\\t', '\t').replace('\\r', '\r')
         delimiter = spreadsheet.delimiter.replace('\\n', '\n').replace('\\t', '\t').replace('\\r', '\r')