A point file is one in which the data is not spaced out on a grid, but rather at arbitrary points around the world. This requires that every data point must have a latitude, longitude, depth and time (depth and time are required for point files in the IDV, but if a file doesn’t have them the converter will automatically add them). A point file must be in exactly the same format as a column file, and all metadata required is the same.
A description of the column format and entering the metadata for it is here. Below is a picture of the form for entering metadata for a point file: