add-ins

Office add-ins and extensions

Programming Fix Excel Add-in Crashes in Shared Runtime Multi-Workbook

Resolve intermittent Excel add-in crashes with custom functions using shared runtime during multi-workbook recalculation. Root causes, diagnostics, mitigations, and best practices for stable Excel add-ins.

#excel
#office-js
#add-ins
#custom-functions
#shared-runtime
#troubleshooting

1 answer• 1 view

01/13/2026, 10:01 AM