2 scripts. First, export timeline markers to csv. Second, import csv to timeline markers
Open the blender file where you have timeline markers you want to export.
Go to the scripting workspace and open save_markers_to_csv.py
If you're not in the default 'Scene', change to your current scen in the python script. this line: for marker in bpy.data.scenes['Scene'].timeline_markers:
A csv file with you markers data should have been created in the same directory as your blend file, with the same name.
Go to the scripting workspace and open read_markers_from_csv.py
Chnage the path to your file in this line: csvfile = '/home/tests/markers.csv'
Markers should have been add to your timeline