How to perform 'Parallel Append to File' in Tcl.
# Task: Parallel Append to File
# Language: Tcl
proc parallel_append_to_file() {
# Implementation for Parallel Append to File
set result = ...; # Initialize variable
# TODO: Implement core logic here
# Step 1: Prepare data
# Step 2: Process Parallel Append to File
puts("Done");
}