I have a data with millions of rows with Long text. but to include them from our excel to the current software, the acceptance is any number of lines, but each line not to exceed 70 characters.

Pls provide any formula to convert a long line to paragraph in separate lines.

Example - take the above lines, i need the output as below:

I have a data with millions of rows with Long text.
but to include them from our excel to the current software, the acceptance
is any number of lines, but each line not to exceed 70 characters.

Pls advise