Please follow the steps below to import a custom client expression/filter:
Log in to HandiTax.
Go up to Reports, Client Expressions and then click New.
Give the report a name, and then click Import (select the file that you downloaded from the case).
Click Save and then Close.
The filter can then be selected in the Client Expression list when running reports.
If you happen to get any errors when running the filter, please reply on the case for more help.