GSLU is an Excel tool for posting SAP journal entries.
In SAP, a Premium user can deploy the PC component of GLSU to Standard Users .
Z Option provides the Excel Add-In Installer application ("SetupGLSU.exe" file) to the Premium user(s). Once the SetupGLSU.exe has been received, it will need to be uploaded to your SAP server. Only then can other users download it from SAP. {NOTE: You MUST perform this upload step for each SAP system/client combination if you wish to deploy the PC components from SAP.}
This is a demonstration of the steps in the GLSU Manual for section "Getting Started -- Getting Started for Premium Users -- Step 4: Uploading new Add-Ins (Premium Only)".