diff --git a/DEV_DOCS.md b/DEV_DOCS.md
index 3349b9e00..aede9c347 100644
--- a/DEV_DOCS.md
+++ b/DEV_DOCS.md
@@ -24,3 +24,9 @@ Each change to the production code (bugfixes, new features, improvements) must i
 HF supports internationalization and provides the localized function names for all built-in languages. When looking for the valid translations for the new functions, try these sources:
 - https://support.microsoft.com/en-us/office/excel-functions-translator-f262d0c0-991c-485b-89b6-32cc8d326889
 - http://dolf.trieschnigg.nl/excel/index.php
+
+For languages not officially supported by Microsoft Excel, the two sources above do not apply. For these languages, use Google Sheets as the reference. Switch the `hl` query parameter to the target locale, for example:
+
+- https://support.google.com/docs/table/25273?hl=id (Indonesian)
+
+For functions that Google Sheets does not list either, fall back to the English name (matching the convention used by Excel in unsupported locales).
diff --git a/docs/guide/built-in-functions.md b/docs/guide/built-in-functions.md
index b1c998e60..5798f0404 100644
--- a/docs/guide/built-in-functions.md
+++ b/docs/guide/built-in-functions.md
@@ -11,6 +11,12 @@ It makes the page wider to accommodate large tables
 .page:has(.widePage) .page-nav /* footer links to the next and prev page */ {
   max-width: 1200px !important; /* override default max-width of 740px for this page */
 }
+/* Make wide tables horizontally scrollable on narrow screens */
+.page:has(.widePage) table {
+  display: block !important;
+  overflow-x: auto;
+  -webkit-overflow-scrolling: touch;
+}
 </style>
 
 ## Overview
diff --git a/docs/guide/list-of-differences.md b/docs/guide/list-of-differences.md
index 32246f80b..2ba4e9479 100644
--- a/docs/guide/list-of-differences.md
+++ b/docs/guide/list-of-differences.md
@@ -11,6 +11,12 @@ It makes the page wider to accommodate large tables
 .page:has(.widePage) .page-nav /* footer links to the next and prev page */ {
   max-width: 1200px !important; /* override default max-width of 740px for this page */
 }
+/* Make wide tables horizontally scrollable on narrow screens */
+.page:has(.widePage) table {
+  display: block !important;
+  overflow-x: auto;
+  -webkit-overflow-scrolling: touch;
+}
 </style>
 
 See a full list of differences between HyperFormula, Microsoft Excel, and Google Sheets.
@@ -18,7 +24,7 @@ See a full list of differences between HyperFormula, Microsoft Excel, and Google
 **Contents:**
 [[toc]]
 
-## General functionalities 
+## General functionalities
 
 | Functionality                                      | Examples                                                                  | HyperFormula                                                                                                                                                                                                                                                                                                                                                 | Google Sheets                                                                                                                  | Microsoft Excel                                                                                                                |
 |----------------------------------------------------|---------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|