The braces indicate that you must make a choice, but the entry is required. Output Data are output from the project and written to the disk. New data is written at the begining of the file, overwriting any existing data. Input Data are input into the project from the disk. Append Data are output from the project and written to the disk.
New data is added to the end of the file.
Next I Write a Visual Basic program that will input from a file, a name, ID and three test scores for a class of no more than 100 students.