Friends what is wrong in my code. It is very short

There is one plugin sheet.

Its first element has numbers.

Using the cycle and tokecount, I wanted to throw all these numbers from the first element into the textbox, but something went wrong

Set text removes all previous content. Try append text.

Set text removes all previous content. Try append text.

Exactly. I realized the mistake.

Here the cycle is not needed at all. In total, the textbox text is equal to the text of the first element of the sheet, that's all)))))