Extension .docx and .bak in the text maker

[kdb]

After saving the file in the text maker, two files are formed. One with the extension .docx and the second .bak
Can someone explain why two files are created?
Thanks.

[SuperTech]

Thanks for your post. Please check if you are using FreeOffice or SoftMaker Office 2021?

That file with .bak is the backup file.

[kdb]

Thanks for the answer.