Sorting Excel

[velocity]

I'm making a small subprogram that takes an Excel workbook (100K cells at minimum, usually more), finds disordered columns and orders the columns. I've managed the part that identifies which column belongs to what product, but I'm stuck on sorting them. I'm using openpyxl to automate other parts of the workbook so I was bit surprised there isn't a sort function in the module. Are there other modules that could do the job or an easy way to do it without using a module?

Thanks.