VBA & Macro Problems

How to Run a Windows VBA Macro on macOS Excel

Emma Brown Oct 19, 2026 868 views

Question details

The user needs to successfully execute a VBA macro created in Excel for Windows on Excel for Mac.

How to Run a Windows VBA Macro on macOS Excel

Product: Microsoft Excel
Device & OS: macOS
Scenario: Running a Windows-based VBA script on a Mac environment where certain components are not natively supported.
Observed behavior: The macro fails to run due to the reliance on Scripting.Dictionary (a Windows COM component unavailable on Mac) and incompatible file path syntax.

Before you start

Before modifying your script, review your VBA code to identify all instances of CreateObject("Scripting.Dictionary") and hardcoded Windows file path backslashes, as these will need direct replacement.

Solution 1Recommended

Replace Windows COM Objects and Update File Paths

Use a custom VBA class to replace the unsupported Scripting.Dictionary and modify path separators to comply with macOS.

Because macOS does not support Windows Component Object Model (COM) libraries, objects like Scripting.Dictionary will instantly throw runtime errors in Excel for Mac. To fix this, you must integrate a Mac-compatible custom dictionary class and adjust how Excel reads directory paths.

Import a Mac-compatible Dictionary Class

Download or create a custom VBA Dictionary replacement class module (typically named Dictionary.cls). Open the VBA Editor on your Mac, right-click your project, select 'Import File', and load the custom class.

Update Variable Declarations

Locate all instances of `CreateObject("Scripting.Dictionary")` in your existing code. Modify these lines to instantiate the new custom class instead, for example, by using `Set myDict = New Dictionary`.

Replace Hardcoded Path Separators

Search your code for any hardcoded backslashes (\) used in file paths. Replace them with `Application.PathSeparator` to ensure the macro dynamically applies the correct separator (a colon or slash) for the macOS file system.

Test with a Small Dataset

Ensure both your macro workbook and the target XLSX files are in the same folder. Run the macro on a small subset of data, and be prepared to grant any macOS sandbox file access prompts that appear.

Replace Windows COM Objects and Update File Paths

Use Conditional Compilation: You can wrap your OS-specific code blocks in `#If Mac Then` and `#Else` statements. This allows you to maintain a single macro workbook that automatically adapts to both Windows and macOS environments.

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Frequently Asked Questions

Why doesn't Scripting.Dictionary work on Mac Excel?

Scripting.Dictionary is a Windows COM (Component Object Model) library object. Since macOS does not support Windows COM architecture natively, this object cannot be created or utilized within Mac Excel VBA.

How do I handle file paths in VBA for both Mac and Windows?

You should use `Application.PathSeparator` in your VBA code instead of hardcoding slashes (/) or backslashes (\). This dynamically inserts the correct folder separator based on the operating system running the code.

Can I run any Windows macros on Mac without modifications?

Simple macros that only manipulate cell data, perform basic math, or apply formatting usually run without issues. However, macros relying on Windows-specific APIs, ActiveX controls, FileSystemObject, or COM add-ins will require code modifications to function on macOS.

What is macOS sandboxing in relation to Excel VBA?

macOS restricts applications from freely accessing the entire file system to enhance security. When an Excel VBA macro attempts to open, read, or save files outside of Excel's secure sandbox environment, it will prompt the user to manually grant file access permissions.

Excel & Data Problems