Office 365 - OneDrive - Invalid File Names and File Types
Information and a link to a Microsoft Support article about invalid file names and file types in OneDrive and SharePoint.
This article contains a link to Microsoft Support about the restrictions and limitations that apply to file names and file types when syncing with OneDrive and SharePoint. In other words, if your file names and file types are not following the naming conventions set by Microsoft, then it will fail to sync or upload.
See the link from Microsoft Support below for more information about invalid file names and file types:
*Related KB article: Office 365 - OneDrive - Fix OneDrive Sync Problems
*Need more help with OneDrive? Then check out the Microsoft Support website for OneDrive help & learning.