If the file saved earlier is edited then

The name will be needed to be changed

the length is more than a page; the file will be needed to be saved

the change will automatically be saved in the file

it is essential to save the file again to store the change

If the file saved earlier is edited then it is essential to save the file again to store the change

Because most of the time the changes have to be saved

otherwise when you open that file your changes may be discarded.

Sometimes it automatically saves the changes.

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ND4-12-2022