Method 1: Via File Manager (Easier)
This method is a bit quicker and likely better for customers new to running a server. However, both methods will work.
1. Login to the control panel at https://panel.chicagoservers.co and navigate to your server.
2. Open the File Manager on the left menu, then go to the Worlds_local folder. Once you're in there, click Upload, as pictured below:
NOTE: You have two options: You can enter the Dedicated folder, delete all files, then upload all of the pre-existing ones you have. OR, you can create a new folder on the same level as Dedicated, and upload your files into there. If you use a different folder name, you will need to configure that as shown in the 2nd image.
If using a different save folder name:
Then go to Startup, then enter your custom world name. Then Save it. If you have any troubles please reach out to support.
* If you are uploading a world that you hosted from your game, it will likely be stored here on your computer: C:\Users\YOURUSER\AppData\LocalLow\IronGate\Valheim\
4. Restart the server.
Method 2: Via SFTP Program (FileZilla)
(It's easy as drag and drop once you're connected to it. Don't let it be intimidating!)
SFTP Guide is found here, which explains how to connect: https://chicagoservers.co/clients/knowledgebase/6/How-to-connect-to-your-serverandsharp039s-SFTP.html
First, you'll need to connect to your server's SFTP so you can move files to and from your server hosted with ChicagoServers and your computer.
Once you're logged into the FTP program, upload your files to the server/saves/worlds_local directory of your choosing that your server will be booting from.