How do I ignore all spelling errors in a Word 2013 document?
For Word 2013, if you want to ignore spelling errors for a particular document while still check spelling errors for other documents, you can go to the Exceptions for: section at the end of the File -> Options -> Proofing section.
Your current document should be selected in the drop-down as default. Check the Hide spelling errors in this document only.
File >> Options >> Proofing
Should be an option to turn off grammar/spell-checking for your document.
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