Word Replacer will let you replace a word,or a sentence in a multiple docx files(office365 Word) from a whole directory(folder) and its sub folders , with an easy to use GUI.
- Type the word you want to replace
- Enter the new word
- Choose your folder path
- It will let you see how much files have been replaced
- It has an option to make the replace process case-sesntive
You can download this app from sourceforge: https://sourceforge.net/projects/word-replacer/ .