Excel, and all of the core Microsoft Office applications, have gone through decades of version upgrades. Along with those upgrades came minor adjustments to Excel file extensions to account for the differences between those Excel files.
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It’s not just version differences that result in new file extensions. Some file extensions refer specifically to the type of file, such as whether it’s an Excel template or an Excel file that contains a macro.
Knowing all the Excel file extensions can help you save your file in the Save File dialog box.
The extension of an Excel file gives you important information about that file before you open it. It also lets you organize the files you save in your folders like template files, macro-enabled files, and more. With just a glance at the Excel file extension, you can know more about the Excel file and what it is used for.
