AudioCuesheetEditor is a Blazor based web application for writing audio cuesheets. There is much validation that helps the user to write a valid cuesheet. You can import external data (like text files, xml files, etc.) and analyse them directly in GUI. There are also much export variations like CSV, but you can customize export freely.
Editing of the cuesheet file is available when using an cuesheet file (.cue) for import.
Also if a previous import was done and the edit view is selected, the filecontent of the previous import is displayed: