BUG: excelwriter engine_kwargs fix

Author: Joeperdefloep

pandas/io/excel/_base.py

@@ -754,6 +754,19 @@ class ExcelWriter(metaclass=abc.ABCMeta):
     >>> with ExcelWriter("path_to_file.xlsx", mode="a", engine="openpyxl") as writer:
     ...     df.to_excel(writer, sheet_name="Sheet3")
 
+    Here, the `if_sheet_exists` parameter can be set to replace a sheet if it
+    already exists:
+
+    >>> with ExcelWriter("path_to_file.xlsx", mode="a", engine="openpyxl", if_sheet_exists="replace") as writer:
+    ...     df.to_excel(writer, sheet_name="Sheet1")
+
+    You can specify arguments to the underlying engine. For example to not
+    calculate the result of a formula:
+
+    >>> df = pd.DataFrame(["=1+1"])
+    ... with ExcelWriter("path_to_file.xlsx", engine_kwargs={"strings_to_formulas":False})
+    ...     df.to_excel(writer)
+
     You can store Excel file in RAM:
 
     >>> import io

pandas/io/excel/_xlsxwriter.py

@@ -195,7 +195,7 @@ def __init__(
             engine_kwargs=engine_kwargs,
         )
 
-        self.book = Workbook(self.handles.handle, **engine_kwargs)
+        self.book = Workbook(self.handles.handle, engine_kwargs)
 
     def save(self):
         """

pandas/tests/io/excel/test_xlsxwriter.py

@@ -61,3 +61,7 @@ def test_write_append_mode_raises(ext):
     with tm.ensure_clean(ext) as f:
         with pytest.raises(ValueError, match=msg):
             ExcelWriter(f, engine="xlsxwriter", mode="a")
+
+def test_engine_kwargs(ext):
+    with tm.ensure_clean(ext) as f:
+        ExcelWriter(f,engine="xlsxwriter",engine_kwargs={"strings_to_formulas":False})