Here is a list of all files with brief descriptions:

fermi-edge-analysis.ipf
pearl-anglescan-panel.ipf
pearl-anglescan-process.ipf
pearl-anglescan-tracker.ipf
pearl-area-display.ipf
pearl-area-import.ipf
pearl-area-profiles.ipf
pearl-arpes.ipf
pearl-data-explorer.ipf
pearl-elog.ipf
pearl-fitfuncs.ipf
pearl-gui-tools.ipf
pearl-matrix-import.ipf
pearl-menu.ipf
pearl-otf-import.ipf
pearl-pmsco-import.ipf
pearl-polar-coordinates.ipf
pearl-pshell-import.ipf
pearl-scienta-preprocess.ipf
pearl-tools.ipf
pearl-vector-operations.ipf