diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1e488e520d..f861a1e9a6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -143,4 +143,3 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           annotate: errors
-      
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 31a06bd826..09831791e9 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,4 +1,4 @@
-# You can run this locally with `pre-commit run [--all-files]`
+# You can run this locally with `pre-commit run [--all]`
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0
@@ -9,6 +9,8 @@ repos:
       # - id: end-of-file-fixer
       - id: mixed-line-ending
         args: [--fix=crlf]
+        # Vendored
+        exclude: ^com/win32comext/mapi/src/mapi_headers/.*$
       - id: check-case-conflict
   - repo: https://github.com/macisamuele/language-formatters-pre-commit-hooks
     rev: v2.12.0
diff --git a/com/win32comext/mapi/src/mapi_headers/MAPIOID.h b/com/win32comext/mapi/src/mapi_headers/MAPIOID.h
index 7029813e8f..fbfcaa1e05 100644
--- a/com/win32comext/mapi/src/mapi_headers/MAPIOID.h
+++ b/com/win32comext/mapi/src/mapi_headers/MAPIOID.h
@@ -1,107 +1,106 @@
-/*
- *  M A P I O I D . H
- *
- *  MAPI OID definition header file
- *
- *  Copyright (c) 2009 Microsoft Corporation. All Rights Reserved.
-
- */
-
-#ifndef _MAPIOID_
-#define _MAPIOID_
-
-/*
- *  MAPI 1.0 Object Identifiers (OID's)
- *
- *  All MAPI 1.0 OIDs are prefixed by the segment
- *
- *      {iso(1) ansi(2) usa(840) microsoft(113556) mapi(3)}
- *
- *  All MAPI 1.0 tags are also include the addistion segment
- *
- *      {tags(10)}
- *
- *  All MAPI 1.0 encodings are also include the addistion segment
- *
- *      {encodeings(11)}
- *
- *  The set of defined tags are as follows
- *
- *   {{mapiprefix} {tags} {tnef(1)}}                        MAPI 1.0 TNEF encapsulation tag
- *
- *   {{mapiprefix} {tags} {ole(3)}}                         MAPI 1.0 OLE prefix
- *   {{mapiprefix} {tags} {ole(3)} {v1(1)}}                 MAPI 1.0 OLE 1.0 prefix
- *   {{mapiprefix} {tags} {ole(3)} {v1(1)} {storage(1)}}    MAPI 1.0 OLE 1.0 OLESTREAM
- *   {{mapiprefix} {tags} {ole(3)} {v2(2)}}                 MAPI 1.0 OLE 2.0 prefix
- *   {{mapiprefix} {tags} {ole(3)} {v2(2)} {storage(1)}}    MAPI 1.0 OLE 2.0 IStorage
- *
- *  The set of defined encodings are as follows
- *
- *   {{mapiprefix} {encodings} {MacBinary(1)}}              MAPI 1.0 MacBinary
- */
-
-#define OID_TAG         0x0A
-#define OID_ENCODING    0x0B
-
-#define DEFINE_OID_1(name, b0, b1) \
-    EXTERN_C const BYTE name[]
-
-#define DEFINE_OID_2(name, b0, b1, b2) \
-    EXTERN_C const BYTE name[]
-
-#define DEFINE_OID_3(name, b0, b1, b2, b3) \
-    EXTERN_C const BYTE name[]
-
-#define DEFINE_OID_4(name, b0, b1, b2, b3, b4) \
-    EXTERN_C const BYTE name[]
-
-#define CB_OID_1        9
-#define CB_OID_2        10
-#define CB_OID_3        11
-#define CB_OID_4        12
-
-#ifdef INITOID
-#include <initoid.h>
-#endif
-
-#ifdef  USES_OID_TNEF
-DEFINE_OID_1(OID_TNEF, OID_TAG, 0x01);
-#define CB_OID_TNEF CB_OID_1
-#endif
-
-#ifdef  USES_OID_OLE
-DEFINE_OID_1(OID_OLE, OID_TAG, 0x03);
-#define CB_OID_OLE CB_OID_1
-#endif
-
-#ifdef  USES_OID_OLE1
-DEFINE_OID_2(OID_OLE1, OID_TAG, 0x03, 0x01);
-#define CB_OID_OLE1 CB_OID_2
-#endif
-
-#ifdef  USES_OID_OLE1_STORAGE
-DEFINE_OID_3(OID_OLE1_STORAGE, OID_TAG, 0x03, 0x01, 0x01);
-#define CB_OID_OLE1_STORAGE CB_OID_3
-#endif
-
-#ifdef  USES_OID_OLE2
-DEFINE_OID_2(OID_OLE2, OID_TAG, 0x03, 0x02);
-#define CB_OID_OLE2 CB_OID_2
-#endif
-
-#ifdef  USES_OID_OLE2_STORAGE
-DEFINE_OID_3(OID_OLE2_STORAGE, OID_TAG, 0x03, 0x02, 0x01);
-#define CB_OID_OLE2_STORAGE CB_OID_3
-#endif
-
-#ifdef  USES_OID_MAC_BINARY
-DEFINE_OID_1(OID_MAC_BINARY, OID_ENCODING, 0x01);
-#define CB_OID_MAC_BINARY CB_OID_1
-#endif
-
-#ifdef  USES_OID_MIMETAG
-DEFINE_OID_1(OID_MIMETAG, OID_TAG, 0x04);
-#define CB_OID_MIMETAG CB_OID_1
-#endif
-
-#endif
+/*
+ *  M A P I O I D . H
+ *
+ *  MAPI OID definition header file
+ *
+ *  Copyright (c) 2009 Microsoft Corporation. All Rights Reserved.

+ */
+
+#ifndef _MAPIOID_
+#define _MAPIOID_
+
+/*
+ *  MAPI 1.0 Object Identifiers (OID's)
+ *
+ *  All MAPI 1.0 OIDs are prefixed by the segment
+ *
+ *      {iso(1) ansi(2) usa(840) microsoft(113556) mapi(3)}
+ *
+ *  All MAPI 1.0 tags are also include the addistion segment
+ *
+ *      {tags(10)}
+ *
+ *  All MAPI 1.0 encodings are also include the addistion segment
+ *
+ *      {encodeings(11)}
+ *
+ *  The set of defined tags are as follows
+ *
+ *   {{mapiprefix} {tags} {tnef(1)}}                        MAPI 1.0 TNEF encapsulation tag
+ *
+ *   {{mapiprefix} {tags} {ole(3)}}                         MAPI 1.0 OLE prefix
+ *   {{mapiprefix} {tags} {ole(3)} {v1(1)}}                 MAPI 1.0 OLE 1.0 prefix
+ *   {{mapiprefix} {tags} {ole(3)} {v1(1)} {storage(1)}}    MAPI 1.0 OLE 1.0 OLESTREAM
+ *   {{mapiprefix} {tags} {ole(3)} {v2(2)}}                 MAPI 1.0 OLE 2.0 prefix
+ *   {{mapiprefix} {tags} {ole(3)} {v2(2)} {storage(1)}}    MAPI 1.0 OLE 2.0 IStorage
+ *
+ *  The set of defined encodings are as follows
+ *
+ *   {{mapiprefix} {encodings} {MacBinary(1)}}              MAPI 1.0 MacBinary
+ */
+
+#define OID_TAG         0x0A
+#define OID_ENCODING    0x0B
+
+#define DEFINE_OID_1(name, b0, b1) \
+    EXTERN_C const BYTE name[]
+
+#define DEFINE_OID_2(name, b0, b1, b2) \
+    EXTERN_C const BYTE name[]
+
+#define DEFINE_OID_3(name, b0, b1, b2, b3) \
+    EXTERN_C const BYTE name[]
+
+#define DEFINE_OID_4(name, b0, b1, b2, b3, b4) \
+    EXTERN_C const BYTE name[]
+
+#define CB_OID_1        9
+#define CB_OID_2        10
+#define CB_OID_3        11
+#define CB_OID_4        12
+
+#ifdef INITOID
+#include <initoid.h>
+#endif
+
+#ifdef  USES_OID_TNEF
+DEFINE_OID_1(OID_TNEF, OID_TAG, 0x01);
+#define CB_OID_TNEF CB_OID_1
+#endif
+
+#ifdef  USES_OID_OLE
+DEFINE_OID_1(OID_OLE, OID_TAG, 0x03);
+#define CB_OID_OLE CB_OID_1
+#endif
+
+#ifdef  USES_OID_OLE1
+DEFINE_OID_2(OID_OLE1, OID_TAG, 0x03, 0x01);
+#define CB_OID_OLE1 CB_OID_2
+#endif
+
+#ifdef  USES_OID_OLE1_STORAGE
+DEFINE_OID_3(OID_OLE1_STORAGE, OID_TAG, 0x03, 0x01, 0x01);
+#define CB_OID_OLE1_STORAGE CB_OID_3
+#endif
+
+#ifdef  USES_OID_OLE2
+DEFINE_OID_2(OID_OLE2, OID_TAG, 0x03, 0x02);
+#define CB_OID_OLE2 CB_OID_2
+#endif
+
+#ifdef  USES_OID_OLE2_STORAGE
+DEFINE_OID_3(OID_OLE2_STORAGE, OID_TAG, 0x03, 0x02, 0x01);
+#define CB_OID_OLE2_STORAGE CB_OID_3
+#endif
+
+#ifdef  USES_OID_MAC_BINARY
+DEFINE_OID_1(OID_MAC_BINARY, OID_ENCODING, 0x01);
+#define CB_OID_MAC_BINARY CB_OID_1
+#endif
+
+#ifdef  USES_OID_MIMETAG
+DEFINE_OID_1(OID_MIMETAG, OID_TAG, 0x04);
+#define CB_OID_MIMETAG CB_OID_1
+#endif
+
+#endif