(N)oob - sos please

[aqw01]

Hi, sorry to bother you for a moment. I am a complete noob and I would like to know if you can help me use the Hashcat application to recover my password on a LibreOffice Writer document, saved not as .odt but as .docx (I don't know what type of encryption it uses for this). I know the beginning but not the ending. Perhaps you would be willing to write a script for the application and explain to me how to do it in two minutes? Thank you