Open File in particular textbox

I have 5 text box, after fill up those boxes, I want to save it as file, but the condition is when I am opening it the five data will show in five text boxes.

I can save only one textbox as a file & can open it, but I don't do tat in five different text boxes.

five textbox data like,

textBox1.text ="ABC"
textBox2.text ="DEF"
textBox3.text ="GHI"
textBox4.text ="JKL"
textBox5.text ="XYZ"

& when it will open this 5 data will show in those 5 text boxes not in a single one.

Thank you in advance!