.XLA

.XLA file extension

This is the list of programs to work with .XLA extension

Microsoft Office 2003 Web Services Toolkit

Microsoft Office 2003 Web Services Toolkit Microsoft Office Excel Add-In

Microsoft Excel 2003

Microsoft Excel 2003 Microsoft Office Excel Add-In

Microsoft Office 97, Developer Edition Tools

Microsoft Office 97, Developer Edition Tools Microsoft Office Excel Add-In

Microsoft Office Visio

Microsoft Office Visio Microsoft Office Excel Add-In

It allows you to create professional diagrams to simplify complex information.
Security Update for Microsoft Office Word 2007 (KB950113)

Security Update for Microsoft Office Word 2007 (KB950113) Microsoft Office Excel Add-In

This update is to prevent other to run and modified in a malicious way a file.
Microsoft Global IME for Office XP (Japanese)

Microsoft Global IME for Office XP (Japanese) Microsoft Office Excel Add-In

DjVu ActiveX Control for Microsoft Office

DjVu ActiveX Control for Microsoft Office Microsoft Excel Add-In

You will have a better user experience by using this plugin.