What is a CYI file? A CYI file is a plain text file used by Clustify, a document clustering application developed by Hot Neuron. It stores information that acts as an input list, telling Clustify which documents to process during a clustering or deduplication task. Each line in a CYI file typically includes the path to a document, along with optional metadata, such as a document ID or custodian name.

More Information Clustify helps law firms, corporations, and other organizations automatically group large collections of text documents based on content similarity. By referencing the CYI list, Clustify knows which files to include in the analysis and how to associate them with additional information. This approach enables users to efficiently organize thousands of documents, particularly in legal discovery and compliance workflows.