use R library(readxl) to read XLSX/Excel file into KNIME

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use R library(readxl) to read XLSX/Excel file into KNIME Export the data to SQLite, ARFF and Parquet and demonstrate to read the files back into KNIME

This is a companion discussion topic for the original entry at https://kni.me/w/5llDhe8m1XSDCXm3