Most of the Office Mobile apps (specifically Word, PowerPoint, and Excel) have received another update on Windows 10 Mobile. All three apps have received some minor new features.
According to WindowsPhoneAddict.fr all three apps now have Intelligent Search features. In addition, the Word app can create tables better with touch interfaces. The Excel app adds the ability to open .cvs files and the PowerPoint app offers improvements on turning text into columns.
Thanks to Florian for the tip!