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!
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