.XLA File

File extension xla is mainly associated with Microsoft Excel, one of the most popular and powerful tool you can use to create format spreadsheets, graphs and much more.

A typical .xla file contains Microsoft Excel add-in files, files that can be loaded in the program as it starts. They contain code (VBA in the case of an xla Add-In) that adds additional functionality to Excel, usually in the form of new functions or tools to execute macros.

Microsoft Excel add-in files sometimes also can have the xll file extension.

MIME types:
application/excel
application/vnd.ms-excel
application/x-excel
application/x-msexcel

Files with xla extension are add-ins for Microsoft Excel spreadsheet program. These are small scripts that add additional functionality for the program.

How to open:

You can import the .xla files into Microsoft Excel to install the add-in.

How to convert:

There doesn't seem to exist any option to convert .xla files to anything else. However they are based on VBA code so perhaps some sort of export option may be possible.