Upload to AWS EC2 via Putty command line

Question

I have tried code entered into the putty command line such as rsync -avz myHugeFile.dat amazonusername@my.amazon.host.ip:

Trouble Uploading Large Files to RStudio using Louis Aslett's AMI on EC2 (code taken from the linked question above)

Though I could not get it to work and I think this was due to not knowing how to properly frame it in light of the location of the files. I am putting this as a separate question rather than a comment as I don't have enough 'reputation' to comment. in the context of a windows user asking this 1) Was I correct to use this in Putty? 2) Did I need to put anything before it? 3) the only things editable are the address of the EC2 so I have that correct and the location of the file. If the file is on the desktop, how would I write this?
Even if you can only answer one of these basic questions it would be really helpful as I piece together code on how to do this. If this question is too basic for this site and your are going to remove, could you please give me an answer before doing so ;)

Answer 1

to sum up what we said in comments: don't use putty to upload files, it is more intended to ssh to your instances. Use a software like winscp or filezilla instead, which are free and easy to use, you will find it a lot easier