Downloading excel spreadsheet to IPad 3 and using on IPad 3

I have uploaded several excel spreadsheets to my gmail account. I want to download the spreadsheets from my gmail account and use on my IPad 3. I will not be doing much revision to the spreadsheets on my IPad but will be inputting new numbers to get results. So no rewriting formulas, etc.

I would appreciate advise on the best procedures and apps to use to accomplish this.

I presume that this is not a new area for this forum but I am new to the IPad.

thanks very much.