Hi @berfri
The command open('test.htm#Help35') does not work in MATLAB, because open searches for a file with the exact name, including the #Help35 fragment, which does not exist.
To open an HTML file at a specific bookmark, the "web" function can be used with a properly constructed file URL.
Here's how you can do it:
filename = fullfile(pwd, 'test.htm');
url = ['file:///' strrep(filename, '\', '/') '#Help35'];
web(url);
Hope this helps!