Sometimes we want to change wordpress posts author name, if you only need to change several posts, and you do not know the skills, you can delete and repost with the new author name. If you need to modify hundreds posts with the same author, how to do then?
Here is the perfect steps:
1) Login into wordpress admin area.
2) Click on Edit in the Posts section.
3) Select the posts for which you need to edit the author details.
4) From the top there is drop down for bulk actions -> select edit and apply.
5) Now, you can change author, comment, status, pings, sticky, categories etc..,
6) After changing the value of author..click on update posts..