The following samples show how to build the simplest Office Add-in with only a manifest, HTML web page, and a logo. They will help you understand the fundamental parts of an Office Add-in. For ...
Office Scripts extract Excel hyperlink URLs without macros; results are hardcoded so the file can stay .xlsx, reuse is straightforward.
Xleak is a simple terminal tool that lets you open and inspect Excel files instantly, without ever leaving your command line.
Drop-down lists in Excel are a great way to speed up data entry, keep your sheet tidy, and avoid typos. No formulas required!