why is microsoft 365 app en-es as well as microsoft 365 es-es, fr-fr, pt-br listed on my apps?

Those entries are Microsoft 365 language components—used for translated menus, Help, and proofing—not separate full installations of Word, Excel, or the Microsoft 365 suite.

The locale codes mean:

• en-US — English (United States)
• en-ES — English configured for Spain
• es-ES — Spanish (Spain)
• fr-FR — French (France)
• pt-BR — Portuguese (Brazil)

Microsoft 365 language accessory packs can add display-language, Help, spelling, grammar, and other proofing resources. Installing one can create a separate locale-labelled entry alongside the primary Microsoft 365 entry.^1^ A documented example shows en-us appearing alongside fr-fr after the English language pack is installed.^2^

They might have been:

• Included when Microsoft 365 was installed.
• Added later as language accessory packs.
• Carried forward from an older Office installation.
• Matched to Windows languages during a managed deployment. Microsoft 365 deployment tools can install all active Windows display languages or retain language resources from a previous MSI-based Office installation.^3^

What to do

If Microsoft 365 works normally, the entries are harmless and can remain installed.

To review them:

1. Right-click Start, select Run, enter appwiz.cpl, and press Enter.
2. In Programs and Features, locate every entry beginning with Microsoft 365.
3. Note which entry is the main product and which entries contain locale codes.

If Windows offers Uninstall for an unwanted locale-specific entry, remove only that language entry—not the main Microsoft 365 product. Keep the language currently used for the Office interface and any languages needed for spelling or grammar checks.

If the computer is managed by an employer or school, contact its IT administrator instead. Microsoft specifically recommends that organizational users have IT manage language packs.^1^

Do not delete Office folders or registry entries manually. If the locale entries do not provide an uninstall option, the available information does not establish a supported removal procedure for your specific Microsoft 365 Home installation; use Microsoft 365 Support rather than forcing their removal.

References

1. Language Accessory Pack for Microsoft 365
2. My Microsoft Word is in French and won't change - Microsoft Q&A
3. Overview of deploying languages for Microsoft 365 Apps