When the Omega1 macro is used, it creates the two files mentioned earlier, Omega-IScores.csv and Omega-IScoresProg.R
It will always create those two files. If there is an active internet connection, it may download some additional files.
As of July, 2018, files that might be downloaded included these possibles: Omega-From-IScores.Rmd, Rasch-Analysis-TAM.Rmd, and IRTmoduleUWO-1.Rmd
Rasch-Analysis-TAM.Rmd computes Rasch statistics and creates ICCs, item characteristic curves having an empirical overlay, making it possible to visually judge goodness of fit. It may be used by following the steps mentioned in the paper referenced in the paragraph immediately above -- where that paper references Omega-From-IScores.Rmd (page 11), substitute Rasch-Analysis-TAM.Rmd.
Other experimental work with related R packages is also on-going; this includes, for example, a fairly comprehensive Rmd script for dichotomous IRT models based on work from the University of Western Ontario called "IRTModuleUWO-1.Rmd". (This UWO paper is a good reference.)
Rmd files contain "R Markdown" code. (Refer to the paper mentioned above.)
The "Omega-From-IScores.Rmd" file may be downloaded from here.
Rasch-Analysis-TAM.Rmd should be available here.
The IRTmoduleUWO-1.Rmd" file may be downloaded from here.