The zipped file needs to be extracted before you can use it. We recommend that you extract it to your personal 'My Documents' directory.
The zip file comprises a main directory (ACBA-Tools) which holds the primary add-in 'ACBA-Tools.xla' and two sub-directories (Help and Pictures).
To investigate the software, you can double click the add-in icon. Depending on the level of security associated with your operating system you may be asked to confirm that you want to activate the macros.
If you require constant access to ACBA Tools, then you should set up your copy of Excel to load the software each time it opens.