diff --git a/pandas-stubs/io/excel/_base.pyi b/pandas-stubs/io/excel/_base.pyi
index e370871b4..33ce34814 100644
--- a/pandas-stubs/io/excel/_base.pyi
+++ b/pandas-stubs/io/excel/_base.pyi
@@ -54,7 +54,7 @@ def read_excel(
     usecols: str | UsecolsArgType = ...,
     dtype: str | Dtype | Mapping[str, str | Dtype] | None = ...,
     engine: ExcelReadEngine | None = ...,
-    converters: Mapping[int | str, Callable[[object], object]] | None = ...,
+    converters: Mapping[int | str, Callable[[Any], Any]] | None = ...,
     true_values: Iterable[Hashable] | None = ...,
     false_values: Iterable[Hashable] | None = ...,
     skiprows: int | Sequence[int] | Callable[[object], bool] | None = ...,
@@ -97,7 +97,7 @@ def read_excel(
     usecols: str | UsecolsArgType = ...,
     dtype: str | Dtype | Mapping[str, str | Dtype] | None = ...,
     engine: ExcelReadEngine | None = ...,
-    converters: Mapping[int | str, Callable[[object], object]] | None = ...,
+    converters: Mapping[int | str, Callable[[Any], Any]] | None = ...,
     true_values: Iterable[Hashable] | None = ...,
     false_values: Iterable[Hashable] | None = ...,
     skiprows: int | Sequence[int] | Callable[[object], bool] | None = ...,
@@ -141,7 +141,7 @@ def read_excel(  # type: ignore[overload-cannot-match]
     usecols: str | UsecolsArgType = ...,
     dtype: str | Dtype | Mapping[str, str | Dtype] | None = ...,
     engine: ExcelReadEngine | None = ...,
-    converters: Mapping[int | str, Callable[[object], object]] | None = ...,
+    converters: Mapping[int | str, Callable[[Any], Any]] | None = ...,
     true_values: Iterable[Hashable] | None = ...,
     false_values: Iterable[Hashable] | None = ...,
     skiprows: int | Sequence[int] | Callable[[object], bool] | None = ...,
@@ -184,7 +184,7 @@ def read_excel(
     usecols: str | UsecolsArgType = ...,
     dtype: str | Dtype | Mapping[str, str | Dtype] | None = ...,
     engine: ExcelReadEngine | None = ...,
-    converters: Mapping[int | str, Callable[[object], object]] | None = ...,
+    converters: Mapping[int | str, Callable[[Any], Any]] | None = ...,
     true_values: Iterable[Hashable] | None = ...,
     false_values: Iterable[Hashable] | None = ...,
     skiprows: int | Sequence[int] | Callable[[object], bool] | None = ...,
@@ -264,7 +264,7 @@ class ExcelFile:
         names: ListLikeHashable | None = ...,
         index_col: int | Sequence[int] | None = ...,
         usecols: str | UsecolsArgType = ...,
-        converters: dict[int | str, Callable[[object], object]] | None = ...,
+        converters: dict[int | str, Callable[[Any], Any]] | None = ...,
         true_values: Iterable[Hashable] | None = ...,
         false_values: Iterable[Hashable] | None = ...,
         skiprows: int | Sequence[int] | Callable[[object], bool] | None = ...,
@@ -292,7 +292,7 @@ class ExcelFile:
         names: ListLikeHashable | None = ...,
         index_col: int | Sequence[int] | None = ...,
         usecols: str | UsecolsArgType = ...,
-        converters: dict[int | str, Callable[[object], object]] | None = ...,
+        converters: dict[int | str, Callable[[Any], Any]] | None = ...,
         true_values: Iterable[Hashable] | None = ...,
         false_values: Iterable[Hashable] | None = ...,
         skiprows: int | Sequence[int] | Callable[[object], bool] | None = ...,
diff --git a/tests/test_io.py b/tests/test_io.py
index 0d0d27dbd..cc764a3e9 100644
--- a/tests/test_io.py
+++ b/tests/test_io.py
@@ -14,6 +14,7 @@
 )
 
 import numpy as np
+from functools import partial
 import pandas as pd
 from pandas import (
     DataFrame,
@@ -304,23 +305,23 @@ def test_sas_bdat() -> None:
     path = pathlib.Path(CWD, "data", "airline.sas7bdat")
     check(assert_type(read_sas(path), DataFrame), DataFrame)
     with check(
-        assert_type(read_sas(path, iterator=True), Union[SAS7BDATReader, XportReader]),
-        SAS7BDATReader,
+            assert_type(read_sas(path, iterator=True), Union[SAS7BDATReader, XportReader]),
+            SAS7BDATReader,
     ):
         pass
     with check(
-        assert_type(read_sas(path, iterator=True, format="sas7bdat"), SAS7BDATReader),
-        SAS7BDATReader,
+            assert_type(read_sas(path, iterator=True, format="sas7bdat"), SAS7BDATReader),
+            SAS7BDATReader,
     ):
         pass
     with check(
-        assert_type(read_sas(path, chunksize=1), Union[SAS7BDATReader, XportReader]),
-        SAS7BDATReader,
+            assert_type(read_sas(path, chunksize=1), Union[SAS7BDATReader, XportReader]),
+            SAS7BDATReader,
     ):
         pass
     with check(
-        assert_type(read_sas(path, chunksize=1, format="sas7bdat"), SAS7BDATReader),
-        SAS7BDATReader,
+            assert_type(read_sas(path, chunksize=1, format="sas7bdat"), SAS7BDATReader),
+            SAS7BDATReader,
     ):
         pass
 
@@ -329,23 +330,23 @@ def test_sas_xport() -> None:
     path = pathlib.Path(CWD, "data", "SSHSV1_A.xpt")
     check(assert_type(read_sas(path), DataFrame), DataFrame)
     with check(
-        assert_type(read_sas(path, iterator=True), Union[SAS7BDATReader, XportReader]),
-        XportReader,
+            assert_type(read_sas(path, iterator=True), Union[SAS7BDATReader, XportReader]),
+            XportReader,
     ):
         pass
     with check(
-        assert_type(read_sas(path, iterator=True, format="xport"), XportReader),
-        XportReader,
+            assert_type(read_sas(path, iterator=True, format="xport"), XportReader),
+            XportReader,
     ):
         pass
     with check(
-        assert_type(read_sas(path, chunksize=1), Union[SAS7BDATReader, XportReader]),
-        XportReader,
+            assert_type(read_sas(path, chunksize=1), Union[SAS7BDATReader, XportReader]),
+            XportReader,
     ):
         pass
     with check(
-        assert_type(read_sas(path, chunksize=1, format="xport"), XportReader),
-        XportReader,
+            assert_type(read_sas(path, chunksize=1, format="xport"), XportReader),
+            XportReader,
     ):
         pass
 
@@ -1149,9 +1150,9 @@ def test_excel_reader():
             check(assert_type(pd.read_excel(ef), pd.DataFrame), pd.DataFrame)
 
         with pd.ExcelFile(
-            path_or_buffer=path,
-            engine="openpyxl",
-            engine_kwargs={"data_only": True},
+                path_or_buffer=path,
+                engine="openpyxl",
+                engine_kwargs={"data_only": True},
         ) as ef:
             check(assert_type(ef, pd.ExcelFile), pd.ExcelFile)
             check(assert_type(pd.read_excel(ef), pd.DataFrame), pd.DataFrame)
@@ -1792,3 +1793,15 @@ def test_read_json_engine() -> None:
         pd.read_json(dd, lines=False, engine="pyarrow")  # type: ignore[call-overload] # pyright: ignore[reportArgumentType, reportCallIssue]
         pd.read_json(io.StringIO(data), engine="pyarrow")  # type: ignore[call-overload] # pyright: ignore[reportArgumentType]
         pd.read_json(io.StringIO(data), lines=True, engine="pyarrow")  # type: ignore[call-overload] # pyright: ignore[reportArgumentType, reportCallIssue]
+
+
+def test_converters_partial() -> None:
+    df = pd.DataFrame({"field_1": ["2020-01-01", "not a date"]})
+    partial_func = partial(pd.to_datetime, errors="coerce")
+
+    with ensure_clean(".xlsx") as path:
+        check(assert_type(df.to_excel(path, index=False), None), type(None))
+
+        result = pd.read_excel(path, converters={"field_1": partial_func})
+        check(assert_type(result, pd.DataFrame), pd.DataFrame)
+