We have found 3 software records in our database eligible for .odt to .fodt file format conversion.
Most productivity suites based on OpenDocument schema, such as OpenOffice.org, LibreOffice, NeoOffice etc. should be able to convert ODT documents to other similar formats, including OpenDocument Flat XML files (.fodt).
Such odt to fodt conversion can be done simply by using the File ► Save as.. program menu option.
ODT
Files with odt extension is used for the default text document format of many open source word processors, like OpenOffice.org Writer. ODT documents can be opened in all commercial and free word processors.
FODT
Files with fodt file extension can be typically encountered as documents saved in OpenDocument Flat XML document in any of the OpenDocument schema based productivity suites, such as OpenOffice.org or LibreOffice.