Unable to call up the style editor

In zetero, the style editor cannot be called up at all (解析样式时出错:Error: File is not valid XML).The cls reference style of Biotechnology and Genetic Engineering Reviews, downloaded from zetero, I don't know how to edit it when opened in Notepad.If the number of authors is 3-20, only the first three authors need to be retained, how should I edit?
Sign Inor Registerto comment.