Thank you answer for your help.
1) I open the .mw directly as XML format in another software. So, as you say, I have indeed a large nested function with XMLElements.
2) The point is that I didn't manage to recover some labels with the layout "Font". So, I would like to transform directly in my worksheet all the line with a layout "Font" into a line with a layout "TextField". The problem is that i easily detect the "Font" layout in the XML function but i didn't find where the layouts "Font" are defined for the code lines in my worksheet.
a) How can I recognize a layout "Font" in a line of a worksheet ?
b) How can I change a layout "Font" into a layout "TexttField" ?
3) I'm very interested about the project you told me at the end enabling the extraction of the contents.
a) Is it possible for you to share it ?
a) Does your program enable to recover also the structure of the workwheet (Section 1 defined with Headling 1, Subsection1 defined with Headlings 2, ...)
Thank you for your help and advices