diff --git a/src/Makefile.am b/src/Makefile.am
index c2049ed8..4ddc6f8a 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -36,9 +36,9 @@ endif
 bin_PROGRAMS		= testdisk photorec fidentify $(QPHOTOREC)
 EXTRA_PROGRAMS		= photorecf fuzzerfidentify
 
-smallbase_C		= common.c crc.c apfs_common.c ext2_common.c fat_common.c log.c misc.c setdate.c
-smallbase_H		= common.h crc.h apfs_common.h ext2_common.h fat_common.h log.h misc.h setdate.h
-base_C			= $(smallbase_C) autoset.c ewf.c fnctdsk.c hdaccess.c hdcache.c hdwin32.c hidden.c hpa_dco.c intrf.c iso.c list_sort.c log_part.c msdos.c parti386.c partgpt.c parthumax.c partmac.c partsun.c partnone.c partxbox.c io_redir.c ntfs_io.c ntfs_utl.c partauto.c sudo.c unicode.c win32.c
+smallbase_C		= common.c crc.c ext2_common.c fat_common.c log.c misc.c setdate.c
+smallbase_H		= common.h crc.h ext2_common.h fat_common.h log.h misc.h setdate.h
+base_C			= $(smallbase_C) apfs_common.c autoset.c ewf.c fnctdsk.c hdaccess.c hdcache.c hdwin32.c hidden.c hpa_dco.c intrf.c iso.c list_sort.c log_part.c msdos.c parti386.c partgpt.c parthumax.c partmac.c partsun.c partnone.c partxbox.c io_redir.c ntfs_io.c ntfs_utl.c partauto.c sudo.c unicode.c win32.c
 base_H			= $(smallbase_H) apfs_common.h alignio.h autoset.h ewf.h fnctdsk.h hdaccess.h hdwin32.h hidden.h guid_cmp.h guid_cpy.h hdcache.h hpa_dco.h intrf.h iso.h iso9660.h lang.h list.h list_add_sorted.h list_add_sorted_uniq.h list_sort.h log_part.h types.h io_redir.h msdos.h ntfs_utl.h parti386.h partgpt.h parthumax.h partmac.h partsun.h partxbox.h partauto.h sudo.h unicode.h win32.h
 
 fs_C			= analyse.c apfs.c bfs.c bsd.c btrfs.c cramfs.c exfat.c ext2.c fat.c fatx.c f2fs.c jfs.c gfs2.c hfs.c hfsp.c hpfs.c luks.c lvm.c md.c netware.c ntfs.c refs.c rfs.c savehdr.c sun.c swap.c sysv.c ufs.c vmfs.c wbfs.c xfs.c zfs.c
@@ -321,6 +321,7 @@ file_C			= filegen.c \
 			  file_rx2.c \
 			  file_save.c \
 			  file_sdsk.c \
+			  file_sdw.c \
 			  file_ses.c \
 			  file_sgcta.c \
 			  file_shn.c \
diff --git a/src/file_sdw.c b/src/file_sdw.c
new file mode 100644
index 00000000..88a39e30
--- /dev/null
+++ b/src/file_sdw.c
@@ -0,0 +1,66 @@
+/*
+
+    File: file_sdw.c
+
+    Copyright (C) 2023 Christophe GRENIER <grenier@cgsecurity.org>
+
+    This software is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ */
+
+#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_sdw)
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include <stdio.h>
+#include "types.h"
+#include "filegen.h"
+
+/*@ requires valid_register_header_check(file_stat); */
+static void register_header_check_sdw(file_stat_t *file_stat);
+
+const file_hint_t file_hint_sdw= {
+  .extension="sdw",
+  .description="Microsoft Jet DB / Sage Simply Accounting database",
+  .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+  .recover=1,
+  .enable_by_default=1,
+  .register_header_check=&register_header_check_sdw
+};
+
+/*@
+  @ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
+  @ ensures  valid_header_check_result(\result, file_recovery_new);
+  @*/
+static int header_check_sdw(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
+{
+  reset_file_recovery(file_recovery_new);
+  file_recovery_new->extension=file_hint_sdw.extension;
+  return 1;
+}
+
+static void register_header_check_sdw(file_stat_t *file_stat)
+{
+  static const unsigned char sdw_header[0x14]=  {
+    0x00, 0x01, 0x00, 0x00, 'J' , 'e' , 't' , ' ' ,
+    'S' , 'y' , 's' , 't' , 'e' , 'm' , ' ' , 'D' ,
+    'B' , ' ' , ' ' , 0x00
+  };
+  register_header_check(0, sdw_header, sizeof(sdw_header), &header_check_sdw, file_stat);
+}
+#endif