ODF

[seasidepb]

First, congratulations - you've made some changes that would seriously tempt me to upgrade (to the 2026 version - I'm a writer and I'm not interested in AI). I like the improvements in the colour options (always hated the red), the MS Office-like formatting box when you right click.. and the improvement in font rendering in Linux. I've always preferred the tabbed UI to the LibreOffice approach.
But ODT support still seems no better than it is in Word (and I'll never touch Word again). Formatting seems ok if you stay within Textmaker, but if you happen to edit a Textmaker ODT doc in LibreOffice and then reopen it in Textmaker, it messes up the headers in particular, as it has always done.
Also "return to last editing point" only works in docx and tmdx formats. Again this has always been the case. The ODS spreadsheet format isn't properly supported at all.
So in truth, using Softmaker Office means using MS Office file formats (because tmdx etc is a little pointless), and that seems a lost opportunity when here in Europe many administrations as well as individuals like me are seeking to limit our exposure to US Big Tech (and that's why I've moved to Linux). I realise that the waters have been muddied by EU-Office, which depends on OnlyOffice, itself a poor clone of MS Office, but you'd have hoped there'd be an opportunity for a European business like yourselves to step in with full support for open document formats.
But I do like what you've done, and I probably will upgrade...

[SuperTech]

Formatting seems ok if you stay within Textmaker, but if you happen to edit a Textmaker ODT doc in LibreOffice and then reopen it in Textmaker, it messes up the headers in particular, as it has always done.

Thank you for your feedback. Please share the sample file in which this issue occurs, after it has been edited first in TextMaker and then in LibreOffice, so that we can examine the differences on our side.

[seasidepb]

File attached. Hope this helps.