WholeClear Investigator is a Windows desktop application for digital forensic examiners, eDiscovery reviewers, corporate compliance and incident-response teams. It examines supported email stores, documents, images, folders and archives. Email formats include PST, OST, EML, EMLX, MSG, MBOX and NSF; NSF requires a compatible Notes client. Users can inspect message headers, content, attachments and routing hops; search indexed evidence with Boolean operators, phrases, field filters, wildcards and regular expressions; and review communication graphs and sender-recipient activity. The software records SHA-256 hashes, processing exceptions, audit details and chain-of-custody information. Case results and reports can be exported in formats including CSV, Excel, JSON, HTML and PDF. OCR can extract text from supported images and scanned documents when enabled. Supported formats depend on the relevant parser and case configuration.