A program called Big-Datasets Manager designed to manage large text documents with information structured in instances and attributes is introduced. The program has a friendly graphical interface, is free and multiplatform. Big-Datasets Manager allows editing text datasets for data mining analyses, common tasks are related to selecting and ordering attributes, filtering and replace data, concatenate files, etc. The program is aimed to specialists in medicinal chemistry, economic, social science specialists or other specialists who employ large files of data structured in rows (instances) and columns (attributes).

Keywords: CSV file, big-data file, data mining, file manager