Is it possible to edit a existing excel document in solution manager

I am trying to edit a excel in S2M solution manager.

I am not able to do it. I downloaded the excel by exporting and have made the changes that i have 

to make to that excel . I know to attach a document to S2M ticket.

But it is hard for me to edit it in the go while viewing the ticket .

This thing is not a matter of urgency . But will be useful in the future.

Thanks in advance.