Go to URL of your Workspace Instance, which is provided at the time of Signup. (Yourworkspacename.officexlr.com)
To login to your instance go to your workspace URL
Enter User Name (Email ID which you have entered at the time of signup) and Password and click Login.
If you are App user and you don't know your Workspace URL, then you can ask your System Administrator.
At the time of sign up, System Administrator Account has been created, which is linked to email address provided in the Signup Form. System administrators are responsible for:
Create, Update, Delete Users/Apps/ DocTypes.
Create Custom User Roles, and assign them to Users.
Maintaining billing information.
Upgrading or downgrading the service plan as needed.
Removing users from the account.