The voice dossierwith a sis the graphic adaptation of dossierand its plural is dose itno dossiers.
However, it is not uncommon to find in the media phrases such as “The economic conditions for sponsoring tests are determined in the dossier”, “The dossiers presented include documents dating back to their age” or “He made exhaustive dossiers before each meeting with trends. of each referee on the pitch”.
According to Panhispanic Dictionary of Doubts, the shape dossierwhich means ‘a set of documents on a subject that are kept together’, is the graphic adaptation of the French voice dossier and it is written with an ese. This same work points out that the plural of words ending in erre is formed by adding -es: dose it.
Therefore, in the previous examples, the appropriate thing to do would have been to write “The economic conditions for sponsoring tests are determined in the dossier”, “The dossiers presented include documents dating back to their age” and “He made exhaustive dossiers before each meeting with the tendencies of each referee on the pitch.
In addition, it is remembered that there are other alternative terms, such as office hour, report o file.