This is because the suite installer includes a common set of fonts, frameworks, and proofing tools that are copied into each app bundle during installation. The Office for Mac installer package, also known as the suite installer, is much smaller than the combined size of the individual app installers. For links to those files, see Most current packages for Office for Mac. Installer package files for individual applications, such as Word or Excel, are available to download from the Office Content Delivery Network (CDN). For example, you can't install Office LTSC for Mac 2021 on the same Mac where Office for Mac (from a Microsoft 365 or Office 365 subscription plan) is already installed. You can't have two different versions of Office installed on a Mac.

Whichever deployment method you decide to use, the following information can help you plan your Office for Mac deployment. Additional deployment information for Office for Mac Even though you can't customize app bundles, you can configure preferences for each app. This change prevents Excel from starting. For example, even if you don't need the French language resource files for Excel, don't delete them. Don't add, change, or remove files in an app bundle.

This means that you can't customize the app bundle before or after you deploy Office. To help improve security, Office for Mac implements Apple app sandboxing guidelines.

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