Microsoft Publisher is a publishing application and a part of the Microsoft Office suite. The application puts focus on page layout and design which makes it perfect a perfect tool for designing cards, posters, newsletters, layers, and brochures.
The first version Publisher was released in 1991 and it’s currently a part of high-end editions of Microsoft Office. It’s worth mentioning that Publisher is available with Office 365 subscription, but it’s available only on PC.
Publisher users .pub format that is compatible with LibreOffice and Corel Draw, but in read-only mode for the latter. It’s worth mentioning that Publisher and Word aren’t compatible, so you won’t be able to open .pub files in Word. However, you can drag and drop the contents of the Word file to Publisher, and you should be able to edit them.