The article describes changes that apply only to the 64-bit versions of Microsoft Office, specifically for Excel 2010 on a 64-bit operating system.

Here are some key points:

1. Visual Basic for Applications (VBA) Version: The article mentions VBA version 7.0 being released with the 64-bit versions of Office, which can work with both 32-bit and 64-bit applications.

2. Compatibility Considerations:

- When writing code specifically for a 64-bit environment, it's crucial to include specific keywords and conditional compilation constants to ensure backward compatibility with earlier versions of Office.

- Mixing 32-bit and 64-bit code requires careful consideration; the correct version-specific code should be executed in each case.

3. Compatibility between 32-bit and 64-bit Versions:

- The article states that you can use a 64-bit version of Office without any changes when writing 32-bit code.

- However, using a 32-bit version of an application within the context of a larger project or system requires careful consideration to ensure compatibility.

4. Benefits of Using 64-Bit Versions:

- The article mentions that the 64-bit versions of Office offer increased capability due to their ability to move more data around.

- Specifically, this is beneficial when working with large numbers in Microsoft Excel 2010.

In summary, understanding these differences and considerations can help you make informed decisions about which version of Office (32-bit or 64-bit) best suits your specific needs.

Add pattern fills excel 2010 64 bit