All metadata and keywords that Excire Foto assigns when adding and analyzing photos are initially only stored in the Excire Foto database – not in the photos themselves.
To make this information visible to other applications (e.g. Lightroom, Capture One, Windows Explorer), the metadata must be written to the photos or XMP sidecar files using Photo → Save Metadata.

For Excire Foto to read keywords already stored in a photo when adding it, the option "Load keywords from analyzed photos" must be enabled in the settings (tab "Metadata"). This option is disabled by default.
Important: This option only works if the analysis is performed directly when adding photos. Photos that were added without analysis can load keywords afterwards via Photo → Load Metadata.
Metadata can either be written directly into the image file or into a separate XMP sidecar file:

To test compatibility with other applications, Excire Foto provides a ZIP file with sample metadata exports (3× CR2 with sidecar file and 1× JPEG). There is also a video demonstrating metadata export and import in Lightroom.
When this option is enabled, keywords are appended to existing keywords when saving, rather than overwriting them. The default setting is "overwrite" – this is correct for most users. If you want to synchronize keywords between multiple applications and also transfer deletions, this option should be disabled.
This option is only recommended for advanced users who work with applications that exclusively use XMP sidecar files for metadata (e.g. Capture One in certain configurations).
Excire Foto stores color labels depending on the language (e.g. "Red" in English, "Rot" in German). If colors are not displayed correctly in another application after saving, the language of the color labels can be adjusted in the settings under the "Label" tab.
For further information on application-specific details, please refer to the article "Metadata compatibility with other applications (Lightroom, Capture One, ACDSee, etc.)".