In the absence of a standard format, experimentalists typically store their experimental time course data in a spreadsheet following an ad hoc structure. Recently, a CSV-formatted spreadsheet, the BioCatNet template , was proposed to store and report experimental data on enzyme-catalyzed reactions according to the STRENDA Guidelines. The API was used to convert the BioCatNet spreadsheet, containing time course data on substrate and product concentration and comprehensive information as the reaction conditions, to EnzymeML.