FlowIO Purpose Use FlowIO as a lightweight, low-level reader and writer for Flow Cytometry Standard files. Examples in this skill target FlowIO 1.4.0 , the current stable release verified on 2026-09-30. Standalone FlowIO checks used Python 3.13, NumPy 2.5.3, and pandas 3.0.6. FlowIO is appropriate for: - Reading FCS 2.0, 3.0, and 3.1 files - Inspecting HEADER, TEXT, ANALYSIS, and channel metadata - Retrieving event data as a two-dimensional NumPy array - Reading legacy files that contain multiple datasets - Writing list-mode, single-precision FCS 3.1 files - Preparing data for pandas, machine…