WholeClear Investigator is a desktop application designed for digital forensic examiners, eDiscovery reviewers, corporate compliance and incident-response teams. It checks supported email stores, documents, photos, folders, and archives. Supported email formats include PST, OST, EML, EMLX, MSG, MBOX and NSF (NSF requires a compatible Notes client). Users can view message headers, content, attachments and routing hops, search indexed evidence with Boolean operators, phrases, field filters, wildcards and regular expressions, and analyze communication graphs and sender-recipient behavior. It records SHA-256 hashes, exception processing, audit and chain-of-custody information in the software. Case findings and reports can be exported in formats such as CSV, Excel, JSON, HTML and PDF. OCR can be enabled, allowing the extraction of text from supported photos and scanned documents. The formats supported depend on the case setup and parser configuration.