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An indexed file is a type of file organization used in databases and information systems to enhance the speed and efficiency of data retrieval and organization. The concept of an indexed file involves maintaining a data file along with an associated index that allows for rapid searching, sorting, and retrieval of records. ### Key Characteristics of Indexed Files: 1. **Index Structures**: The index serves as a lookup table that includes keys or pointers to the actual data records in the file.

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