XML file generated does not have signature, is considered invalid

One of the main problems caused by the google, tata, ntro hacking of the laptop of a private citizen, is that the domain investor cannot generate xml file, when the excel utility is used
There is no validation error when the xml file is generated for itr two and three
Yet when the file is uploaded, it will give an error.
When the same file is used on other laptops it will give the proper xml file without any problem, indicating ntro’s harassment of private citizens, hacking their laptops so that they can make fake claims