How to import .txt file?

Hello all, I work for the school newspaper, and we just switched to WordPress over the summer, and running into an issue. When we left College Publisher, they gave us our archives in a .txt file and all the pictures in a .zip file for the articles we had online.

Is there a way I can mass upload these to our new website? I rather not upload each article one by one. Any help would be great, thank you!

Also, if you need to see the website it would be on it would be mesalegend.com