I agree, it would be helpful to work with this format as NGO's often use those ODF standards!

Hi. We still need this evolution. Thank you

very very helpful to everybody !

Long overdue!

We really need this. All of the census data in Northern Ireland comes in this format by default.

Very good idea. I'm working on a daily basis with ODS files and this is very helpful.

I know this is quite an old post but ODS is becoming more and more standard for UK governement Open Data.

The OpenDocument format (ODF) for Office Document Applications are a ISO standards: 
Information technology — Open Document Format for Office Applications (OpenDocument) v1.2

ISO/IEC 26300-1:2015 - Part 1: OpenDocument Schema

ISO/IEC 26300-2:2015 - Part 2: Recalculated Formula (OpenFormula) Format

ISO/IEC 26300-3:2015 - Part 3: Packages

OASIS - Open Document Format for Office Applications (OpenDocument) Version 1.2

The use of  Open Document Spreadsheet (.ods) is legaly mandatory for Portuguese public administration for interoperabilty reasons and fredoom to access public open data, regardless of the software used.

Legal references are:

Open Formats Law - Lei n.º 36/2011, de 21 de junho

National Digital Interoperability Regulation - Resolução do Conselho de Ministros n.º 2/2018, de 5 de janeiro

So, adding an reader and writer for ODS OpenDocument format to FME would be a great value added to FME software solutions, and very usefull for FME users around the world, and especially for Portuguese FME users.