Editing phprc file

I would like to increase my memory and file size upload for a one-time upload. This seems easy based on these instructions:

But I’m not technically savvy at all. Using ftp, I think I created the .php folder with a 5.3 folder inside, but when I try to create a phprc text file without the file extension it’s a weird format that I can’t seem to do anything with. It’s not clear that this is a file that I could edit or change any PHP settings in, so I must be doing something wrong.

If you are a windows user what I used to do long ago, before i had my current setup was to create the file in notepad naming it with the .txt extension then uploading that, once it was on the server then i would rename it and remove the .txt extension.

hope that helps!