The fact that I was up all night writing a text, saving periodically), and then the accident happened that removed all the text, did not notice, saved the document, went to bed, woke up the next morning and realized his mistake. Is it possible somehow to recover the information?
I would be very grateful for any advice.

You said you didnt saved it and shutdown your system. Let assume you saved and it doesnt open or it's hidden, u still have hope

Hello , you can try to restore using a backup copy of the product , or try to use repair the rtf file to find this free program here : http://www.rtf.repair/