Take your CSVs and shove 'em!...into an Excel file...
csv2xlsx new_excel_file.xlsx file1.csv file2.csv [...]
This creates an Excel file called new_excel_file.xlsx with each CSV file's contents in its own sheet. The sheets are named the same as the CSV filename, e.g. the first sheet is named file1.
All I did was wrap a loop around this awesome library: http://github.com/randym/axlsx
Copyright (c) 2013, Ryan Duryea.
This project is licensed under the MIT License.