Well, if you use Windows 7 or Windows 10, and you run the Spartancoin.exe directly, usually the Wallet and another data will be located in C:\Users\UserName\AppData\Roaming\Spartancoin
Try to go there, and manually create a Spartancoin.conf file, and write this lines :
addnode=209.141.60.48:55884
addnode=104.207.144.147:55884
addnode=45.63.15.197:55884
addnode=94.23.206.111:55884
addnode=40.112.208.24:55884
Or from Windows, Start Menu, Run, type %appdata%, press Enter, find the Spartancoin folder, create Spartancoin.conf using Notepad or your favourite text editor, with the addnode above
For me, usually I make a shortcut to the spartancoin.exe, with the following target :
E:\Cryptocurrency\Spartancoin\spartancoin-qt.exe -datadir=E:\Cryptocurrency\Spartancoin\
* Notice there's a double strike before --datadir