You can use any VBA-compliant application to integrate with the external open feature.
To import a macro into Excel:
When you have done this, the GT_Integration module is visible. You can use the VBA integration macros in this Excel worksheet.
You can assign VBA integration macros to buttons or menu links in the Excel worksheet. For example, to assign a command for launching the AR Invoice Entry form, select Tools > Macro from the Excel menu. Select the macro to assign the command to and click Options.
Click OK to confirm. Press CTRL-A to open the AR Invoice Entry form using Excel.
Select the option to Customise Quick Access Toolbar. Select More Commands to display the macros available for selection. Select the macros and Add them to the right side of the form.
When this process is complete, a macro icon displays on the Excel toolbar. Click the icon to run the macro.