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This post shows how to turn off curved quotes in Word 2016. It also shows you how to check the version of Word you're using.
Check Word Version
Step #1: Click File
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Step #2:
1) Click Account
2) Click About Word
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The version:
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Turn off Curly Quotes
Step #1: Click File
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Step #2: Click Options
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Step #3:
1) Click Proofing
2) Click AutoCorrect Options...
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Step #4:
1) Click AutoFormat As You Type
2) Click the "Straight quotes" with "smart quotes" check box off
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Step #5:
1) Click AutoFormat
2) Click the "Straight quotes" with "smart quotes" check box off
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Step #6: Click OK
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Step #7: Click OK again
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Reference
Word icon from [link].