Freeze results, hide sensitive logic, and boost performance by converting dynamic formulas into static values.
If you don't have access to the password, you can click on the "Preview" option to open the password-protected MS Office file ...
If Excel is not recognizing functions after reboot, change calculation settings, disable Show Formula, run Excel ...
For JupyterLab 2.x, have look there. You can watch the source directory and run JupyterLab at the same time in different terminals to watch for changes in the extension's source and automatically ...