Powershell script error GPOMigration' was not loaded because no valid module file was found in any modu le directory. Please help

Hello,
I download another GPO script for importing GPOs and it is failing. I extracted all the contents and it does have that module directory that it is complaining about. Please let me know why I am getting it:

https://gallery.technet.microsoft.com/Migrate-Group-Policy-2b5067d8

PS C:\GPOscriptbest2> .\Call-GPOExport.ps1
Import-Module : The specified module '.\GPOMigration' was not loaded because no valid module file was found in any modu
le directory.
At C:\GPOscriptbest2\Call-GPOExport.ps1:65 char:14
+ Import-Module <<<<  ".\GPOMigration" -Force
    + CategoryInfo          : ResourceUnavailable: (.\GPOMigration:String) [Import-Module], FileNotFoundException
    + FullyQualifiedErrorId : Modules_ModuleNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

The term 'Start-GPOExport' is not recognized as the name of a cmdlet, function, script file, or operable program. Check
 the spelling of the name, or if a path was included, verify that the path is correct and try again.
At C:\GPOscriptbest2\Call-GPOExport.ps1:75 char:16
+ Start-GPOExport <<<<  `
    + CategoryInfo          : ObjectNotFound: (Start-GPOExport:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException