Microsoft Office, in simple terminology you can call it Office was developed by Microsoft in the year 1998. The launch of the Office suite was announced by Microsoft founder Bill Gates himself. Initially, Microsoft Office had three main applications like Microsoft Word, Microsoft Excel, and Microsoft PowerPoint. Over the years Microsoft Office came up with additions like Microsoft Access, Microsoft Outlook, Microsoft OneDrive, Skype, and many more.
Microsoft Office has two main versions at the moment known as Microsoft Office 2019 for which you can pay upfront a one-time payment and Microsoft Microsoft365.cpm/setup which is subscription-based. Both versions can be installed in a similar manner, but the procedure of Office Setup could be different on different operating systems, such as Windows or Mac and the easiest way for Office Setup is to visit office.com/setup and follow the on-screen instructions.
Reinstalling office 365 can easily be done from Microsoft365.com/setup by using your Office account.
Login to Office account directly at Microsoft365.cpm/setup
Choose the preferred version of Office that needs to be reinstalled.
Click download.
Wait for the installer package to download.
Run the setup file.
Activate Office.