This is a Key-Value pair template used for the annotation of datasets in OMERO. It is tailored for a research study (PERIKLES project) on the biocompatibility of newly designed biomaterials out of pericardial tissue for cardiovascular substitutes (https://doi.org/10.1063/5.0182672) conducted in the research department of Cardiac Surgery at the Faculty of Medicine Carl Gustav Carus at the Technische Universität Dresden . A corresponding public example dataset is used in the publication "Setting up an institutional OMERO environment for bioimage data: perspectives from both facility staff and users" and is available here (https://omero.med.tu-dresden.de/webclient/?show=dataset-1557). The template is based on the REMBI recommendations (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8606015) and it was developed during the PoL-Bio-Image Analysis Symposium in Dresden Aug 28th- Sept 1th 2023. With this template it is possible to create a csv-file, that can be used to annotate a dataset in OMERO using the annotation script (https://github.com/ome/omero-scripts/blob/develop/omero/annotation_scripts/). How to use: select and copy the data range containing Keys and Values open a new excel sheet and paste transpose in column B1 type in A1 'dataset' insert in A2 the exact name of the dataset, which should be annotated in OMERO save the new excel sheet in csv- (comma seperated values) file format Example can be seen in sheet 1 'csv import'. Important note; the code has to be 8-Bit UCS transformation format (UTF-8) otherwise several characters (for example µ, %,°) might not be able to decode by the annotation script. We encountered this issue with old Microsoft Office versions (e.g. MS Office 2016). Note: By filling the values in the excel sheet, avoid the usage of decimal delimiter. See cross reference: 10.5281/zenodo.12547566 Key-Value pair template for annotation of datasets in OMERO (light- and electron microscopy data within the research group of Prof. Mueller-Reichert) 10.5281/zenodo.12578084 Key-Value pair template for annotation in OMERO for light microscopy data acquired with AxioScan7 - Core Facility Cellular Imaging (CFCI)