Where are the annotation, signal, or header files I just created?
WFDB applications can read from local files or directly from remote locations such as the PhysioNet web site, but they always write to local files. In order to read annotation, signal, or header files that you have written, it will usually be simplest to begin within the directory (folder) that was current when they were created. If you use WFDB applications to create new annotation, signal, or header files, those files are created within the current working directory (or, in some cases, its subdirectories).