How to open files from office excel task pane add-in?

Question

I'm developing an Office Excel Task Pane add-in, and I have the need to import the content of external files (other spreadsheets and PDF files) into the active workbook.

On VBA (also VB and C#), workbooks could be open with the Workbooks.Open() method, but it is not available on Office/Excel JS library.

So, how may I open files from Office/Excel Task Pane add-ins?

Thanks in advance!

Answer 1

At this point in time our APIs do not support opening external applications. Please feel free to submit your feature request at https://officespdev.uservoice.com/ and we will take it into account for future APIs.

Regards, Philip, Developer on the Microsoft Office Extensibility team