Can you edit a spreadsheet using excel?

Yes I can if only the Spreadsheets are created in MS Excel & not secure with a password

Sure, if spreadsheet was made on Microsoft Excel.

yes, spreadsheet can edit in excel

Yes Spreadsheet can be edited through Excel given that the sheet is not protected.

Yes, spreadsheet can be edited 

Yes. Spread sheet can be edited.

yes it can be added through excel if not protected

YES I 'AM PERFECT IN EDITING  USING MS EXCEL APPLICATION.

yes.i do it..no problem  for me

Yes Of course. if the spreadsheet is not protected you can edit it as MS Excel is used to that. 

Yes. It can be edited if no password or not protected