Hi Fidelis Okolafor, thank you for the scientific question. I would like to introduce Origin software to plot the data due to easy-to-use application. You may visit their website (https://www.originlab.com/) for more information.
How will you analyze the XRD pattern using the Origin software?
For plotting the data and visualizing only you can use Origin in any version. If you want to do the XRD analysis there is much software available. For FTIR you can do the peak fit using origin and find out the exact peak positions.
If you want to do the Analysis and Plot the FTIR data use Origin software. If you want to do analysis the XRD data used GSAS, FullProf. etc. and plot the results with Origin.
Dear Iona Maria Cortea, as you pointed out you can do only the values of the peaks as a result of the analysis. Will it give the modes of vibrations or stretching. One can do a meaningful analysis by peak fitting for FTIR data with Origin. For XRD one can use the Rietveld refinement and plot in the Origin.