EDS + AEM Authoring spreadsheet publishing encoding issue with French accented characters

Hi everyone,

We are currently working with Edge Delivery Services using AEM Authoring as the content source (spreadsheet-based publishing flow).

We noticed that after publishing a spreadsheet and generating the corresponding JSON, French accented characters are being replaced by the Unicode replacement character (�).

Example:

Aller simple � partir de
instead of
Aller simple à partir de

What we validated so far:

• Spreadsheet content inside AEM Authoring looks correct
• Source content is UTF-8 encoded
• Frontend rendering path is correct
• Generated JSON already contains the replacement character

This makes us think the issue may happen somewhere in the spreadsheet → JSON publishing pipeline, possibly related to charset handling during transformation.

Has anyone experienced something similar when using EDS with AEM Authoring and spreadsheet-based content?

Are there any known encoding considerations, charset configurations, or best practices we should review?

Thanks in advance!