EDF Workbench is a Windows x64 desktop application for opening and reviewing EDF, EDF+, BDF, and BDF+ recordings. Its multi-document waveform workspace supports channel search and organization, navigation and scaling controls, point and region measurements, annotation browsing and separate sidecars, selected-region frequency inspection, and review exports within documented format limits. Review actions leave the source recording unchanged. The current version, 0.1.5, is an Authenticode-signed public preview intended for waveform viewing, review, measurement, education, software validation, and research support. It makes no diagnostic interpretation claim. Downloads, documentation, and support are available from https://edfworkbench.com/.