Sending a odt file format to windows user

[W. S. S.]

>> OOo can export documents as PDF. If being able for the recipient to edit
>> the file is not a requirement, maybe this is the most hassle-free solution.
>> Otherwise, save your document in word format - as was already proposed.

Send in .txt format. Alternatively, you can open a Google Document
account or other online document processing platform which would make
cooperation smoother.