Added Pandas Load Excel node to read Excel file and added dependency on openpyxl package.

modules/pandas_wrapper/pandas_load_excel.py

@@ -0,0 +1,55 @@
+from typing import Any, Dict
+from io import StringIO
+import pandas as pd
+
+
+class PandasLoadExcel:
+    """
+    Loads Excel files into a pandas DataFrame.
+
+    This node uses read_excel method.
+    See [Pandas documentation](https://pandas.pydata.org/docs/reference/api/pandas.read_excel.html) for details.
+
+    If sheet_name is not specified, first sheet will be read.
+
+    category: IO
+    """
+    
+    @classmethod
+    def INPUT_TYPES(cls) -> Dict[str, Any]:
+        """
+        Defines the input types for the `load_csv` function.
+
+        Returns:
+            Dict[str, Any]: A dictionary specifying required input types.
+        """
+        return {
+            "required": {
+                "file_path": ("STRING", {"multiline": False}),
+                "sheet_name": ("STRING", {"default": ""}),
+                
+            }
+        }
+
+    RETURN_TYPES: tuple = ("DATAFRAME",)
+    FUNCTION: str = "f"
+    CATEGORY: str = "Data Analysis"
+
+    @classmethod
+    def IS_CHANGED(cls, **kw):
+        return float("NaN")
+
+    def f(self, file_path: str, sheet_name: str) -> tuple:
+        """
+        Loads an Excel file into a pandas DataFrame.
+
+        Args:
+            file_path (str): The path to the Excel file.
+
+        Returns:
+            tuple: A tuple containing a DataFrame.
+        """
+        if len(sheet_name) == 0:
+            sheet_name = 0  # Read first sheet
+        df = pd.read_excel(file_path, sheet_name=sheet_name)
+        return (df,)