Note: LodgeiT Smart Excel Utility (LSU) is not compatible with Office365 cloud version;  it operates with Office365 desktop versions 2013 and older. 


Please try to  download and install using this
https://lodgeit.s3-ap-southeast-2.amazonaws.com/tools/seu/setup.exe

If it is blocking the installation, please try to ask your IT ask to check network restrictions.


Related guides:

Unable to see "LodgeiT/LSU" tab in spreadsheet (LodgeiT Smart Excel Utility) 

Installation for Add-in issue : LodgeiT Smart Excel Utility

LSU Issue: Old Excel Version