I need a c++ program which read a data from excel file and and make a histogram on root. I shall be thankful to you thanks
ROOT cannot directly read the Excel file format. But you can export the Excel data to a CSV, which can be processed e.g. by RDataFrame. See here for further information:
I converted my excel file into csv file will you please guide me about its programming to make a histogram
In this forum search for “csv”. This question was answered several times.