TMS FMX RichEdit j 'saves files in .rte format and it is impossible to reopen .
Message error "forma incorecte flows"
french to english translation google
Are you 100% sure this file is in .RTE format? Did you save with TMSFMXRichEditor.SaveToFile('filename.rte'); ?
Can you try to open it in Notepad and verify it isn't a plain text file or HTML file?