what grammar checker software is this

[nabchak]

Hi

could anyone tell me what software has been used to correct the grammar in the fashion as mentioned in the attached document( .docx)

One more thing, what is the best grammar checking software that gives practically no room for errors in the essay.

regards

[Tdol]

There is no software that gives no room or practically no room for error. Great advances are being made, but we are a long way from a machine that can read a text and understand it perfectly, let alone one that can read an incorrect text and find every fault.