Also looks like the on screen font size is different than the save as image font size as well...
It would be great if there was an option to just add text under the title...
Anyway, here is the file opened normally in REW:
Here is the same file, but clicking on the overlays:
And here is the save as image. Note the different font size compared to above...
Finally, the mdat is attached as a zip. PS. I have never taken any impedance measurements but have 100's of other measures... I have been using your program for a long time (thank you!) and never have I had any issues with font size or save to image, which I have posted 100's of online...