diff --git a/odex25_ensan/odex_benefit/controllers/__init__.py b/odex25_ensan/odex_benefit/controllers/__init__.py
index 5610f61db..80c563f51 100644
--- a/odex25_ensan/odex_benefit/controllers/__init__.py
+++ b/odex25_ensan/odex_benefit/controllers/__init__.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
 from . import benefit
 from . import benefit_services
+from . import attchment_preview
 
diff --git a/odex25_ensan/odex_benefit/controllers/attchment_preview.py b/odex25_ensan/odex_benefit/controllers/attchment_preview.py
new file mode 100644
index 000000000..0d5517fb3
--- /dev/null
+++ b/odex25_ensan/odex_benefit/controllers/attchment_preview.py
@@ -0,0 +1,30 @@
+import base64
+from odoo import http
+from odoo.http import request
+import urllib.parse  # For URL encoding
+
+
+class MyAttachmentController(http.Controller):
+    @http.route('/browse/document/<int:id>', type='http', auth="public")
+    def browse_document(self, id):
+        model = 'ir.attachment'
+        attachment = request.env[model].sudo().browse(id)
+
+        if not attachment.exists() or not attachment.datas:
+            return request.not_found()
+
+        # Decode the file content
+        file_data = base64.b64decode(attachment.datas)
+        file_mimetype = attachment.mimetype or 'application/octet-stream'
+
+        # URL-encode the filename for non-ASCII characters
+        filename = urllib.parse.quote(attachment.name)
+
+        # Set HTTP headers with the URL-encoded filename
+        http_headers = [
+            ('Content-Type', file_mimetype),
+            ('Content-Length', str(len(file_data))),
+            ('Content-Disposition', f'inline; filename*=UTF-8\'\'{filename}')
+        ]
+
+        return request.make_response(file_data, headers=http_headers)
diff --git a/odex25_ensan/odex_benefit/models/ir_attachment_inherit.py b/odex25_ensan/odex_benefit/models/ir_attachment_inherit.py
index 6fcf89cc2..db157a02c 100644
--- a/odex25_ensan/odex_benefit/models/ir_attachment_inherit.py
+++ b/odex25_ensan/odex_benefit/models/ir_attachment_inherit.py
@@ -22,6 +22,14 @@ class BenefitAttachment(models.Model):
     is_required = fields.Boolean(string='Is Required?')
     is_default = fields.Boolean(string='Is Default?')
 
+    def action_preview_attachment(self):
+        # Custom function to open the preview
+        return {
+            'type': 'ir.actions.act_url',
+            'url': f'/browse/document/{self.id}',
+            'target': 'new',  # Opens in a new tab
+        }
+
     @api.depends('expiration_date')
     def get_status(self):
         for rec in self:
@@ -61,4 +69,5 @@ class BenefitAttachment(models.Model):
     def onchange_disabilities_id(self):
         for rec in self:
             if rec.disabilities_id:
-                rec.name = rec.disabilities_id.name
\ No newline at end of file
+                rec.name = rec.disabilities_id.name
+
diff --git a/odex25_ensan/odex_benefit/views/benefit_view.xml b/odex25_ensan/odex_benefit/views/benefit_view.xml
index 7c359014c..fe4be3ae5 100644
--- a/odex25_ensan/odex_benefit/views/benefit_view.xml
+++ b/odex25_ensan/odex_benefit/views/benefit_view.xml
@@ -572,7 +572,8 @@
                                                          <tree editable="bottom">
                                                             <field name="hobbies_id" required="1"/>
                                                              <field name="name"/>
-                                                            <field name="datas" string="File content"/>
+                                                             <field name="datas" widget="binary" filename="attachment_file_name"/>
+                                                            <button name="action_preview_attachment" type="object" string="Preview Attachment"/>
                                                             <field name="expiration_date"/>
                                                             <field name="attach_status"/>
                                                             <field name="member_id" invisible="1"/>
@@ -584,7 +585,8 @@
                                                         <tree editable="bottom">
                                                             <field name="diseases_id" required="1"/>
                                                             <field name="name"/>
-                                                            <field name="datas" string="File content"/>
+                                                             <field name="datas" widget="binary" filename="attachment_file_name"/>
+                                                             <button name="action_preview_attachment" type="object" string="Preview Attachment"/>
                                                             <field name="expiration_date"/>
                                                             <field name="attach_status"/>
                                                             <field name="member_id" invisible="1"/>
@@ -596,7 +598,8 @@
                                                         <tree editable="bottom">
                                                             <field name="disabilities_id" required="1"/>
                                                             <field name="name"/>
-                                                            <field name="datas" string="File content"/>
+                                                             <field name="datas" widget="binary" filename="attachment_file_name"/>
+                                                             <button name="action_preview_attachment" type="object" string="Preview Attachment"/>
                                                             <field name="expiration_date"/>
                                                             <field name="attach_status"/>
                                                             <field name="member_id" invisible="1"/>
@@ -670,8 +673,8 @@
                                                         <tree editable="bottom" delete="0">
                                                             <field name="name" string="Attachment Name" attrs="{'readonly':[('is_default','=',True)]}" force_save="1"/>
                                                             <field name="attach_id" invisible="1"/>
-                                                            <field name="datas" string="File content"/>
-                                                            <field name="expiration_date"/>
+                                                            <field name="datas" widget="binary" filename="attachment_file_name"/>
+                                                            <button name="action_preview_attachment" type="object" string="Preview Attachment"/>                                                            <field name="expiration_date"/>
                                                             <field name="attach_status"/>
                                                             <field name="allow_days"/>
                                                             <field name="benefit_id" invisible="1"/>
@@ -1005,7 +1008,8 @@
                                 <field name="attachment_ids" widget="one2many_list" attrs="{'readonly':[('state','not in',['draft','complete_info','edit_info'])]}">
                                     <tree editable="bottom" delete="0">
                                         <field name="name" attrs="{'readonly':[('is_default','=',True)]}" force_save="1"/>
-                                        <field name="datas"/>
+                                        <field name="datas" widget="binary" filename="attachment_file_name"/>
+                                        <button name="action_preview_attachment" type="object" string="Preview Attachment"/>
                                         <field name="expiration_date"/>
                                         <field name="attach_status"/>
                                         <field name="allow_days"/>