Extension:GoogleDocs4MW

The GoogleDocs4MW extension allows to embed Google Docs' spreadsheets on the wiki via the  tag.

Supported parameters are width (500 by default), height (300 by default) and style (width:100% by default). Usage example with all the parameters:

This extension was inspired by the Wikia extension with the same name, but this extension was written back when Wikia wasn't open source.

Note that to actually embed a spreadsheet, the spreadsheet needs to be published with Google's  option. It is not sufficient to just have a shareable link.