Wouldn't It Be Wonderful to Have....ODS?

The Guardian continues to do its bit for open data:

The Guardian has pulled together a collection of datasets drawn from the US

Rather cleverly, it is using Spreadly, aka Google Spreadsheets to offer various formats:

Simon Rogers gathered this information and shared the raw data via Google Spreadsheets for anyone to use. This means that people can grab the data in whatever format is most desirable including text, .csv, .xls, and .pdf.

That's great, but why is .odf - also available from Spreadly - omitted? Anything personal? Lack of space? Not enough electrons...?