Hello BadCRC,
what format have your "usual .hist-files"? How do you want to display them? Be a little more specific on that!
You surely want to have some kind of graphics instead of a simple text display? Maybe you should try the intensity graph.
Are your data spaced evenly or do they use arbitrary distances from
point to point? For evenly spaced data I have written programs (mainly
to interpret/display measurements on wafer level aka chip-mappings).
For arbitrary spaced data you need some kind of interpolation...
Best regards,
GerdW

using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019