diff --git a/addons/spreadsheet/models/__init__.py b/addons/spreadsheet/models/__init__.py
index 1e5778f2654..4ffa8ea879f 100644
--- a/addons/spreadsheet/models/__init__.py
+++ b/addons/spreadsheet/models/__init__.py
@@ -2,3 +2,4 @@
 
 from . import res_currency
 from . import res_currency_rate
+from . import spreadsheet_mixin
diff --git a/addons/spreadsheet/models/spreadsheet_mixin.py b/addons/spreadsheet/models/spreadsheet_mixin.py
new file mode 100644
index 00000000000..d8ec5a9c47d
--- /dev/null
+++ b/addons/spreadsheet/models/spreadsheet_mixin.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+import base64
+from odoo import api, fields, models
+from odoo.addons.spreadsheet.utils import empty_spreadsheet_data_base64
+
+class SpreadsheetMixin(models.AbstractModel):
+    _name = "spreadsheet.mixin"
+    _description = "Spreadsheet mixin"
+    _auto = False
+
+    spreadsheet_binary_data = fields.Binary(required=True, string="Spreadsheet file", default=empty_spreadsheet_data_base64())
+    spreadsheet_data = fields.Text(compute='_compute_spreadsheet_data', inverse='_inverse_spreadsheet_data')
+    thumbnail = fields.Binary()
+
+    @api.depends("spreadsheet_binary_data")
+    def _compute_spreadsheet_data(self):
+        for spreadsheet in self.with_context(bin_size=False):
+            if not spreadsheet.spreadsheet_binary_data:
+                spreadsheet.spreadsheet_data = False
+            else:
+                spreadsheet.spreadsheet_data = base64.b64decode(spreadsheet.spreadsheet_binary_data).decode()
+
+    def _inverse_spreadsheet_data(self):
+        for spreadsheet in self:
+            if not spreadsheet.spreadsheet_data:
+                spreadsheet.spreadsheet_binary_data = False
+            else:
+                spreadsheet.spreadsheet_binary_data = base64.b64encode(spreadsheet.spreadsheet_data.encode())
diff --git a/addons/spreadsheet/static/tests/utils/data.js b/addons/spreadsheet/static/tests/utils/data.js
index 1589016ddc7..1f52d4aced9 100644
--- a/addons/spreadsheet/static/tests/utils/data.js
+++ b/addons/spreadsheet/static/tests/utils/data.js
@@ -218,12 +218,12 @@ export function getBasicData() {
         "spreadsheet.template": {
             fields: {
                 name: { string: "Name", type: "char" },
-                data: { string: "Data", type: "binary" },
+                spreadsheet_data: { string: "Spreadsheet Data", type: "text" },
                 thumbnail: { string: "Thumbnail", type: "binary" },
             },
             records: [
-                { id: 1, name: "Template 1", data: btoa("{}") },
-                { id: 2, name: "Template 2", data: btoa("{}") },
+                { id: 1, name: "Template 1", spreadsheet_data: {} },
+                { id: 2, name: "Template 2", spreadsheet_data: {} },
             ],
         },
         "res.currency": {
diff --git a/addons/spreadsheet_dashboard/models/spreadsheet_dashboard.py b/addons/spreadsheet_dashboard/models/spreadsheet_dashboard.py
index 5179c86cb2b..0e4d2f6f065 100644
--- a/addons/spreadsheet_dashboard/models/spreadsheet_dashboard.py
+++ b/addons/spreadsheet_dashboard/models/spreadsheet_dashboard.py
@@ -1,24 +1,12 @@
-import base64
-import json
-
-from odoo import api, fields, models, _
-
-from odoo.addons.spreadsheet.utils import empty_spreadsheet_data_base64
+from odoo import fields, models
 
 class SpreadsheetDashboard(models.Model):
     _name = 'spreadsheet.dashboard'
     _description = 'Spreadsheet Dashboard'
+    _inherit = "spreadsheet.mixin"
     _order = 'sequence'
 
     name = fields.Char(required=True, translate=True)
     dashboard_group_id = fields.Many2one('spreadsheet.dashboard.group', required=True)
-    data = fields.Binary(required=True, default=lambda self: empty_spreadsheet_data_base64())
-    spreadsheet_data = fields.Text(compute='_compute_spreadsheet_data')
-    thumbnail = fields.Binary()
     sequence = fields.Integer()
     group_ids = fields.Many2many('res.groups', default=lambda self: self.env.ref('base.group_user'))
-
-    @api.depends("data")
-    def _compute_spreadsheet_data(self):
-        for dashboard in self.with_context(bin_size=False):
-            dashboard.spreadsheet_data = base64.b64decode(dashboard.data).decode()
diff --git a/addons/spreadsheet_dashboard/views/spreadsheet_dashboard_views.xml b/addons/spreadsheet_dashboard/views/spreadsheet_dashboard_views.xml
index cb8207eb9e2..be93c81a3e2 100644
--- a/addons/spreadsheet_dashboard/views/spreadsheet_dashboard_views.xml
+++ b/addons/spreadsheet_dashboard/views/spreadsheet_dashboard_views.xml
@@ -53,7 +53,7 @@
                 <group>
                     <field name="name"/>
                     <field name="dashboard_group_id"/>
-                    <field name="data"/>
+                    <field name="spreadsheet_binary_data"/>
                     <field name="thumbnail"/>
                     <field name="group_ids" widget="many2many_tags"/>
                 </group>
diff --git a/addons/spreadsheet_dashboard_account/data/dashboards.xml b/addons/spreadsheet_dashboard_account/data/dashboards.xml
index 9857d516209..a1cd1d6d3c8 100644
--- a/addons/spreadsheet_dashboard_account/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_account/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="dashboard_invoicing" model="spreadsheet.dashboard">
         <field name="name">Invoicing</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_account/data/files/invoicing_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_account/data/files/invoicing_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_finance"/>
         <field name="group_ids" eval="[Command.link(ref('account.group_account_readonly')), Command.link(ref('account.group_account_invoice'))]"/>
         <field name="sequence">20</field>
diff --git a/addons/spreadsheet_dashboard_event_sale/data/dashboards.xml b/addons/spreadsheet_dashboard_event_sale/data/dashboards.xml
index 97f653b1082..35ed35afc4a 100644
--- a/addons/spreadsheet_dashboard_event_sale/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_event_sale/data/dashboards.xml
@@ -7,7 +7,7 @@
 
     <record id="spreadsheet_dashboard_events" model="spreadsheet.dashboard">
         <field name="name">Events</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_event_sale/data/files/events_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_event_sale/data/files/events_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard_event_sale.spreadsheet_dashboard_group_marketing"/>
         <field name="group_ids" eval="[Command.link(ref('event.group_event_manager'))]"/>
         <field name="sequence">60</field>
diff --git a/addons/spreadsheet_dashboard_hr_expense/data/dashboards.xml b/addons/spreadsheet_dashboard_hr_expense/data/dashboards.xml
index ac552511abe..1cd34c6159a 100644
--- a/addons/spreadsheet_dashboard_hr_expense/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_hr_expense/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_expense" model="spreadsheet.dashboard">
         <field name="name">Expenses</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_hr_expense/data/files/expense_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_hr_expense/data/files/expense_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_finance"/>
         <field name="group_ids" eval="[Command.link(ref('hr_expense.group_hr_expense_manager'))]"/>
         <field name="sequence">40</field>
diff --git a/addons/spreadsheet_dashboard_hr_timesheet/data/dashboards.xml b/addons/spreadsheet_dashboard_hr_timesheet/data/dashboards.xml
index 2505fb2b5ae..dff86e9fd6d 100644
--- a/addons/spreadsheet_dashboard_hr_timesheet/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_hr_timesheet/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_tasks" model="spreadsheet.dashboard">
         <field name="name">Tasks</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_hr_timesheet/data/files/tasks_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_hr_timesheet/data/files/tasks_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_project"/>
         <field name="group_ids" eval="[Command.link(ref('hr_timesheet.group_hr_timesheet_approver'))]"/>
         <field name="sequence">100</field>
diff --git a/addons/spreadsheet_dashboard_im_livechat/data/dashboards.xml b/addons/spreadsheet_dashboard_im_livechat/data/dashboards.xml
index a15c8d7b59e..4ca50d716da 100644
--- a/addons/spreadsheet_dashboard_im_livechat/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_im_livechat/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_livechat" model="spreadsheet.dashboard">
         <field name="name">Live chat</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_im_livechat/data/files/livechat_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_im_livechat/data/files/livechat_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_website"/>
         <field name="group_ids" eval="[Command.link(ref('im_livechat.im_livechat_group_manager'))]"/>
         <field name="sequence">100</field>
diff --git a/addons/spreadsheet_dashboard_pos_hr/data/dashboards.xml b/addons/spreadsheet_dashboard_pos_hr/data/dashboards.xml
index d3967891e30..121c487175f 100644
--- a/addons/spreadsheet_dashboard_pos_hr/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_pos_hr/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_pos" model="spreadsheet.dashboard">
         <field name="name">Point of Sale</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_pos_hr/data/files/pos_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_pos_hr/data/files/pos_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_sales"/>
         <field name="group_ids" eval="[Command.link(ref('point_of_sale.group_pos_manager'))]"/>
         <field name="sequence">300</field>
diff --git a/addons/spreadsheet_dashboard_purchase/data/dashboards.xml b/addons/spreadsheet_dashboard_purchase/data/dashboards.xml
index 78b4eaaaebb..29b4a39a53b 100644
--- a/addons/spreadsheet_dashboard_purchase/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_purchase/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_vendors" model="spreadsheet.dashboard">
         <field name="name">Vendors</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_purchase/data/files/vendors_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_purchase/data/files/vendors_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_logistics"/>
         <field name="group_ids" eval="[Command.link(ref('purchase.group_purchase_manager'))]"/>
         <field name="sequence">200</field>
diff --git a/addons/spreadsheet_dashboard_purchase_stock/data/dashboards.xml b/addons/spreadsheet_dashboard_purchase_stock/data/dashboards.xml
index ac95a88c9dc..68a027be404 100644
--- a/addons/spreadsheet_dashboard_purchase_stock/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_purchase_stock/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_purchase" model="spreadsheet.dashboard">
         <field name="name">Purchase</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_purchase_stock/data/files/purchase_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_purchase_stock/data/files/purchase_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_logistics"/>
         <field name="group_ids" eval="[Command.link(ref('stock.group_stock_manager'))]"/>
         <field name="sequence">100</field>
diff --git a/addons/spreadsheet_dashboard_sale/data/dashboards.xml b/addons/spreadsheet_dashboard_sale/data/dashboards.xml
index c72461fbd53..fe8abc3f25f 100644
--- a/addons/spreadsheet_dashboard_sale/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_sale/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_sales" model="spreadsheet.dashboard">
         <field name="name">Sales</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_sale/data/files/sales_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_sale/data/files/sales_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_sales"/>
         <field name="group_ids" eval="[Command.link(ref('sales_team.group_sale_manager'))]"/>
         <field name="sequence">100</field>
@@ -11,7 +11,7 @@
 
     <record id="spreadsheet_dashboard_product" model="spreadsheet.dashboard">
         <field name="name">Product</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_sale/data/files/product_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_sale/data/files/product_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_sales"/>
         <field name="group_ids" eval="[Command.link(ref('sales_team.group_sale_manager'))]"/>
         <field name="sequence">200</field>
diff --git a/addons/spreadsheet_dashboard_sale_timesheet/data/dashboards.xml b/addons/spreadsheet_dashboard_sale_timesheet/data/dashboards.xml
index abcf10f2bea..6474fb822c8 100644
--- a/addons/spreadsheet_dashboard_sale_timesheet/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_sale_timesheet/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_timesheet" model="spreadsheet.dashboard">
         <field name="name">Timesheets</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_sale_timesheet/data/files/timesheet_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_sale_timesheet/data/files/timesheet_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_project"/>
         <field name="group_ids" eval="[Command.link(ref('hr_timesheet.group_hr_timesheet_approver'))]"/>
         <field name="sequence">200</field>
diff --git a/addons/spreadsheet_dashboard_stock_account/data/dashboards.xml b/addons/spreadsheet_dashboard_stock_account/data/dashboards.xml
index e499e6f8dd8..2c2a08ea86d 100644
--- a/addons/spreadsheet_dashboard_stock_account/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_stock_account/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_inventory_on_hand" model="spreadsheet.dashboard">
         <field name="name">Inventory On Hand</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_stock_account/data/files/inventory_on_hand_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_stock_account/data/files/inventory_on_hand_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_logistics"/>
         <field name="group_ids" eval="[Command.link(ref('stock.group_stock_manager'))]"/>
         <field name="sequence">300</field>
diff --git a/addons/spreadsheet_dashboard_website_sale_slides/data/dashboards.xml b/addons/spreadsheet_dashboard_website_sale_slides/data/dashboards.xml
index ed959728932..2d5a17b8fe1 100644
--- a/addons/spreadsheet_dashboard_website_sale_slides/data/dashboards.xml
+++ b/addons/spreadsheet_dashboard_website_sale_slides/data/dashboards.xml
@@ -3,7 +3,7 @@
 
     <record id="spreadsheet_dashboard_elearning" model="spreadsheet.dashboard">
         <field name="name">eLearning</field>
-        <field name="data" type="base64" file="spreadsheet_dashboard_website_sale_slides/data/files/elearning_dashboard.json"/>
+        <field name="spreadsheet_binary_data" type="base64" file="spreadsheet_dashboard_website_sale_slides/data/files/elearning_dashboard.json"/>
         <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_website"/>
         <field name="group_ids" eval="[Command.link(ref('website_slides.group_website_slides_manager'))]"/>
         <field name="sequence">200</field>