This thesis explores the implementation of FAIR data principles — Findability, Accessibility, Interoperability, and Reusability — within the context of
the spectroscopy experiments conducted at the EuroFEL Support Laboratory. The project focuses on the adoption of the NeXus data format to adapt
the output data from the Femtosecond Transient Absorption Spectroscopy
and Photoluminescence Spectroscopy beamlines. For the transient absorption setup, the existing LabVIEW acquisition system was adapted to include
the required metadata structures defined by the NXoptical_spectroscopy application definition. In parallel, a graphical user interface was developed to
convert proprietary .spc files into NeXus format for photoluminescence measurements. All files generated were tested for cross-platform interoperability
and FAIR compliance using open-source visualization tools. This work contributes to the standardization and transparency of scientific data workflows,
supporting long-term goals of Open Science as outlined by international ini
