Are ehlpdhtm.js and rhstylemapping.css files needed in RoboHelp 2019 Classic projects?

[BarryMV]

I have imported/upgraded an X3 (mpj) project into RH2019 Classic as a new XPJ project.  When the upgrade is done but before generating the output, eg a CHM, the original (X3) folder is copied/overwritten such that the pre-existing/original project files have the current date except for the 2 files mentioned in the subject line.

I am trying to clean up the project and figure out what files need to be tracked in an EXTERNAL source control system.  I am guessing that those 2 files, since they show the original/old date, are not imported/upgraded and therefore of no use to the new XPJ project.

Is this a safe assumption?

[BarryMV · Accepted solution]

Never mind. I was confused. Both files are apparently generated by the import/upgrade itself (which is why it shows old dates, I suppose.)