diff --git a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
index c18f73f3c..7bd49f28c 100644
--- a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
+++ b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
@@ -386,8 +386,12 @@ define([
                 this.api.asc_setAutoSaveGap(value);
             }
 
-            value = Common.localStorage.getItem("sse-settings-reg-settings");
-            if (value!==null) this.api.asc_setLocale(parseInt(value));
+            var reg = Common.localStorage.getItem("sse-settings-reg-settings"),
+                decimal = Common.localStorage.getItem("sse-settings-decimal-separator"),
+                group = Common.localStorage.getItem("sse-settings-group-separator");
+            decimal = decimal === 'undefined' ? undefined : decimal;
+            group = group === 'undefined' ? undefined : group;
+            if (reg!==null) this.api.asc_setLocale(parseInt(reg), decimal, group);
 
             menu.hide();
 
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index 59b437fb8..b314928a3 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -342,17 +342,21 @@ define([
                 this.headerView.setCanBack(this.appOptions.canBackToFolder === true, (this.appOptions.canBackToFolder) ? this.editorConfig.customization.goback.text : '')
                                 .setUserName(this.appOptions.user.fullname);
 
-                var value = Common.localStorage.getItem("sse-settings-reg-settings");
-                if (value!==null)
-                    this.api.asc_setLocale(parseInt(value));
+                var reg = Common.localStorage.getItem("sse-settings-reg-settings"),
+                    decimal = Common.localStorage.getItem("sse-settings-decimal-separator"),
+                    group = Common.localStorage.getItem("sse-settings-group-separator");
+                decimal = decimal === 'undefined' ? undefined : decimal;
+                group = group === 'undefined' ? undefined : group;
+                if (reg!==null)
+                    this.api.asc_setLocale(parseInt(reg), decimal, group);
                 else {
-                    value = this.appOptions.region;
-                    value = Common.util.LanguageInfo.getLanguages().hasOwnProperty(value) ? value : Common.util.LanguageInfo.getLocalLanguageCode(value);
-                    if (value!==null)
-                        value = parseInt(value);
+                    reg = this.appOptions.region;
+                    reg = Common.util.LanguageInfo.getLanguages().hasOwnProperty(reg) ? reg : Common.util.LanguageInfo.getLocalLanguageCode(reg);
+                    if (reg!==null)
+                        reg = parseInt(reg);
                     else
-                        value = (this.editorConfig.lang) ? parseInt(Common.util.LanguageInfo.getLocalLanguageCode(this.editorConfig.lang)) : 0x0409;
-                    this.api.asc_setLocale(value);
+                        reg = (this.editorConfig.lang) ? parseInt(Common.util.LanguageInfo.getLocalLanguageCode(this.editorConfig.lang)) : 0x0409;
+                    this.api.asc_setLocale(reg, decimal, group);
                 }
 
                 value = Common.localStorage.getBool("sse-settings-r1c1");
diff --git a/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js b/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
index 0519d8875..2907fca35 100644
--- a/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
+++ b/apps/spreadsheeteditor/main/app/view/FileMenuPanels.js
@@ -769,7 +769,11 @@ define([
             this.chSeparator = new Common.UI.CheckBox({
                 el: $markup.findById('#fms-chb-separator-settings'),
                 labelText: this.strUseSeparatorsBasedOnRegionalSettings
-            });
+            }).on('change', _.bind(function(field, newValue, oldValue, eOpts){
+                var checked = field.getValue() === 'checked';
+                this.inputDecimalSeparator.setDisabled(checked);
+                this.inputThousandsSeparator.setDisabled(checked);
+            }, this));
 
             var keyDown = function(event){
                 var key = event.key,
@@ -887,6 +891,17 @@ define([
                 this.cmbRegSettings.setValue(Common.util.LanguageInfo.getLocalLanguageName(value)[1]);
             }
             this.updateRegionalExample(value);
+
+            var decimal = this.api.asc_getDecimalSeparator();
+            this.inputDecimalSeparator.setValue(decimal ? decimal : '');
+
+            var group = this.api.asc_getGroupSeparator();
+            this.inputThousandsSeparator.setValue(group ? group : '');
+
+            var isBaseSettings = _.isUndefined(decimal) && _.isUndefined(group);
+            this.chSeparator.setValue(isBaseSettings);
+            this.inputDecimalSeparator.setDisabled(isBaseSettings);
+            this.inputThousandsSeparator.setDisabled(isBaseSettings);
         },
 
         applySettings: function() {
@@ -908,6 +923,18 @@ define([
             if (this.cmbRegSettings.getSelectedRecord())
                 Common.localStorage.setItem("sse-settings-reg-settings", this.cmbRegSettings.getValue());
 
+            var decimal,
+                group;
+            if (this.chSeparator.isChecked()) {
+                decimal = undefined;
+                group = undefined;
+            } else {
+                decimal = this.inputDecimalSeparator.getValue();
+                group = this.inputThousandsSeparator.getValue();
+            }
+            Common.localStorage.setItem("sse-settings-decimal-separator", decimal);
+            Common.localStorage.setItem("sse-settings-group-separator", group);
+
             Common.localStorage.save();
             if (this.menu) {
                 this.menu.fireEvent('settings:apply', [this.menu]);