1. Official documents and files of administrative organs: such as official letters, documents, reports and opinions of administrative organs.
2. Archives of enterprises and institutions: such as industry and commerce, taxation, finance, archives, personnel and labor relations of enterprises and institutions, etc.
3. Personal family files: such as personal documents, academic qualifications, professional titles, honors and other files, as well as family genealogy, genealogy, relics and so on.
4. Historical documents: such as books, maps, portraits, audio-visual materials, people's treasures, etc.
5. Ancient books and documents: such as the Ministry of Economic Affairs, the Ministry of History, the Ministry of Education and other works. Xi Archives is a professional organization that undertakes the collection, storage, utilization and management of official documents and archival materials donated by administrative organs, units, individuals and families.