Description: Add HSTACK function to Calc for interoperability with MS Excel https://support.microsoft.com/en-us/office/hstack-function-98c4ab76-10fe-4b4f-8d5f-af1c125fe8c2 Steps to Reproduce: - Actual Results: Calc doesn't support HSTACK function Expected Results: Calc supports HSTACK function Reproducible: Always User Profile Reset: No Additional Info: -