i have write a heml file without show the header section ,i want to know why

How do i replace a string from a file with a new string

Develop an M-file to create a plot of volume versus depth, and test your program with cylinder(3,5,'Volume versus depth for horizontal cylindrical tank').

For the code for the txt file. Dim sw As Streamwriter = File.AppendText(fileName) I get an error for the file.AppendText(fileName). How do i fix this.

What is the difference between using +/- versus = when setting file permissions? Is there any benefit of using = instead of +/- too set permissions?

How do I read in a specific row in a CSV file in Python without using pandas, list, or enumerate functions? For example, how do I ask to read row 10 in the file, and then ask for row 50, row 20 or row X?

Professor Potter, a punning pedantic, practices puzzling her students. She has left a secret message, of unknown length, encoded in a file for you to unravel. The setup is simple: each line of the file contains one char and one non-negative integer. The key to reading the message is organizing the characters in the proper order. The integer indicates the position of the character within the message. For example: e 2 b 1 a 3 h 5 c 4 spells 'beach' when unraveled. Write a program that will: Ask the user for the name of a file Check to see that the file exists and contains some data. Open and read this file exactly once Using your MessageDecoder class, unravel and display the message Offer to do it again on another file Required classes: You will create and submit 2 classes: MessageDecoder class: Responsible for converting a scrambled message file into plain text. Contains a public method getPlainTextMessage() that returns the String object. The scrambled file must be scanned only once…

Write a program that read a file(person.txt) from previous question Q1, and Showa all the records/lines from the file as a nicely formatted report with a header as shown: name..............age................city..........