Jun 18 2020 01:27 PM
Hi,
I'm using Excel 2013, and developing a vsto plugin. I've added custom task pane, but it wasn't showing ;/
so I googled for similar problem:
https://stackoverflow.com/questions/24577747/excel-custom-task-pane-not-showing
it was pointed out that other addins can interfere
Tried this locally and after disabling Solver addin custom task pane is showing correctly.