First, this extension is a based of https://www.outsystems.com/forge/component-overview/355/advanced-excel, but this is not mentioned every at all. This is against the Code-Of-Conduct as that says "Don't Claim the Work of Others as Your Own".

Second, you didn't create a clone of the extension, with as a result if someone has Advanced Excel application installed, that application will be broken after this Customize Export to Excel extension is installed as it actually replaces the extension of Advanced Excel. This is really wrong!

You should have created a clone extension, so that it's not the same, changing a name is not enough.