How to update the huge range of data in excel sheet fastly as possible?

Question

excel sheet in the SharePoint.
The data range is about 130 column and 16000 rows.
So i did tried updating the data by dividing it into the smaller chunkz. Still its taking a lot of time, say about 30-40 minutes to update those amount of data in sheet. (Time includes fetching those data from sheet, manupulting and updating)

I am doing it programmatically using the java.
So is there any way posiible I can reduce those times.