Hey!
Can you please provide an example file?
But as far as I could understand, you have x, y and z in meters provided. Basically, you need to define the projection from crs_wkt and reproject your (x, y, z) into wgs84 (EPSG: 4326) projection to get (lon, lat, altitude). For inspiration look here.
[HERE FILE LINK ](https://drive.google.com/file/d/1uJJBWdbkPMdg0VNoDFBFrwhI8NB7JPEQ/view?usp=drive_link)
In that file WIDTH variable i want convert into csv file with data of width, longitude,latitude, altitude, time and date after clutter process . I know to do clutter process but after that how to save it as csv file with lat and log is the issue