The paper provides an overview of mass data entry technologies into the system with a concrete example presented on a selected set of technologies consisting of the Eclipse Scout development framework, the PostgreSQL database, the PG Admin database manager, and the external Docx4j library with associated auxiliary libraries. The final work is divided into four parts. The first part begins with examples from the literature that talk about different businesses and technological solutions that have faced the problem of a large amount of data. The continuation of the first part talks about the need that led to the development of a practical solution for mass data entry into the system and describes the possibilities of the realized solution in the practical part of the work and how certain components are used within the created application. The continuation of the work talks about the technologies used, specifically the Eclipse Scout development framework, the used PostgreSQL database, the PG Admin manager and the Java programming language. The described technologies form the second part of the work. The central part of the work consists of the third unit that describes the external Docx4j library and auxiliary libraries that contribute to mass data entry with their capabilities. At the end of the paper, the application of similar technologies is discussed, i.e. a comparison of the Apache POI external library with the Docx4j library is made.