You can select any of the above options. If you want to open the file, click Open. As explained above, this is not an error message. It is a warning message which can ...

New Outlook fails to open Excel attachments with non-ASCII characters in filenames, and shows an error. Microsoft recommends using Outlook on the web or downloading ...

Some Microsoft Outlook users have reported getting the Your Outlook data file cannot be configured error on their PC. This error occurs when trying to open Outlook ...

Microsoft has announced that it will be blocking more file types by default soon on Outlook for the Web and New Outlook. Back in 2019, Microsoft announced a big change to its list of blocked file ...

Several Outlook users, on different forums, have reported encountering the error “OST file cannot be opened,” when trying to open the application or sending ...