How to run the spellcheck in Word when there are capitalized words?

I have a document that was completely written in capital letters and I need to check the spelling. Word is ignoring all of it for some reason. Do you know where is the option to check the spelling if there is one?

Click "File" and then "Options." Open the Proofing tab and uncheck the "Ignore words in UPPERCASE" box. Press "OK." If you have "Check spelling as you type" enabled, all capitalized words not in the Office dictionary will immediately display red underlines. If not, they will come up as errors the next time you run a manual spellcheck.

Another option is to "select all" and "change case" to lower it. After doing the spellcheck, you can "select all" and "change case" again to capitalize it back.

Much appreciated! You won't know for how long I have been looking for a solution to that (and always lazy enough not to Google it or to search within MS Word's help :)) I used to take the long way by selecting all text, changing in to lowercase with MS Word's feature to toggle between lower and uppercase, run the spell checker, spot all missing accents and later fixing that. My last step was to revert all back to the capitalized style. Fine but tedious workaround! :)

That is a long process, gentle!
The good thing is that we discovered many options in that menu.

Indeed, there are many other features. I like to use the "Enforce accented uppercase in French". Many of my works involve accented uppercase words (as per client's instruction). This option helps me save a tremendous amount of time during QAs and revisions.