<s>
Microsoft	B-Device
Editor	I-Device
is	O
a	O
closed	B-Application
source	I-Application
AI-powered	O
writing	O
assistant	O
available	O
for	O
Word	O
,	O
Outlook	B-Operating_System
,	O
and	O
as	O
a	O
Chromium	B-Language
browser	I-Language
extension	O
part	O
of	O
Office	B-Operating_System
365	I-Operating_System
.	O
</s>
<s>
It	O
includes	O
the	O
essentials	O
in	O
a	O
writing	O
assistant	O
,	O
such	O
as	O
a	O
grammar	O
and	O
spell	B-Application
checker	I-Application
.	O
</s>
