use Office Compatibility Mode (OCM)

Taken from Save, edit & share Microsoft Office files, specicately from the following section:

You can use Microsoft Office files in Google Drive in three ways on your computer:

• From web browsers or with sync clients
• Use the plugin with your Microsoft Office programs
• Upload your files to drive.google.com and use Office Compatibility Mode (OCM)

To sync files directly from your computer to Google Drive, download Google Drive for Mac or PC.

NOTE: The supported features of OCM are very limited.

use Office Compatibility Mode (OCM)

Taken from Save, edit & share Microsoft Office files, specifically from the following section:

You can use Microsoft Office files in Google Drive in three ways on your computer:

• From web browsers or with sync clients
• Use the plugin with your Microsoft Office programs
• Upload your files to drive.google.com and use Office Compatibility Mode (OCM)

To sync files directly from your computer to Google Drive, download Google Drive for Mac or PC.

NOTE: The supported features of OCM are very limited.