ABFview

Axon Binary Format (ABF) file viewer
ABFview is an electrophysiology data viewer for Axon Binary Format (ABF) files. ABFview is a minimal ABF file viewer. Unlike ClampFit, ABFview does not need to be installed to run, and it does not lock ABF files while viewing them.
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ABFview 1.4 updated June 14, 2022 (changelog)
Source: ABFview and its dependencies are open source 🚀✨