Work through this in order
- Identify whether the file is ODT, ODS or ODP.
- Choose the matching OpenDocument viewer.
- Review extracted paragraphs, rows or slide text.
- Check the source when repeated cells or styles may be flattened.
- Use LibreOffice or another editor for precise page layout and formulas.
Use the matching tool
Inspect a local copy with ODT Document Text Reader. After the check, save or repair files only using trusted software that supports the format.