fluxes appear truncated when reopened in new session

Posted by james.lowenthal on Sep 20, 2017; 5:26pm
URL: http://astroimagej.170.s1.nabble.com/fluxes-appear-truncated-when-reopened-in-new-session-tp835.html

This seems like an 8-bit vs 16-bit problem but I can't find where.

I'm running AIJ db3.2.1 on Mac OS X 10.12.6.  I reduced an exoplanet transit dataset, did multi-aperture photometry, got a nice plot, and saved the results in a file (default extension = ".xls" though it's really just an ASCII text file).  

If I quit AIJ, restart AIJ, and access the old data via File > Import > Results, I see that all the fluxes are truncated to 3 digits.  Plotting the light curve shows the same thing: flux values are truncated, so what was originally a smooth curve is now a step-function.

If I open the same results file with a text editor, I see the numbers in fact are fine, i.e. not truncated.  

Example: for star T1, text viewer shows  rel_flux_T1 = 0.016786, but AIJ Results window shows rel_flux_T1 = 0.017

Any tips on how to open old data properly?  Is File > Import > Results the wrong method?