Hi 
I was trying to download a file from salesforce 'attachments' object to my local system through sql. I was able to get the files body as 'hexa code' by querying the 'attachments' object. But I am trying to find a way so that I can converts this hexa code into excel file (since the file was a .xlsx file).

Can anyone please help on this.Some other solution is also fine.
Thanks in advance

I would like to update my TrailHead account to use my peronsonal email address as opposed to my work email as it's set-up today.  I can not find any info on how I can do this.  Does anyone have the answer?