sorting problem

I have a csv list of book title,author,filename that was ordered chronologically as files were created. I can load the data into a workbook OK but I can't see how to sort the whole workbook? I need to retain the rows as the data is related? I can select any column and sort that OK but I need to sort the whole workbook using the data in column A. I will need to export the sorted data again as a .csv file? I don't see how to do that euither? I hope somebody can help me here?