URGENT UPDATE: Microsoft has confirmed a major bug affecting the new Outlook app, preventing users from opening Excel attachments that contain non-ASCII characters. This issue has sparked frustration among users, who have reported performance problems with the new app since its launch.
According to a service alert from Microsoft, identified as issue EX1189359, users attempting to open Excel files attached to emails in the new Outlook may encounter an error message stating, “Try opening the file again later.” This troubling development impacts users who handle files with accented letters or non-Latin characters in their filenames.
While Microsoft is actively working on a fix, users are advised to utilize Outlook on the web or download the files locally to access their Excel attachments in the meantime. The company has not provided a specific timeline for the resolution, but it is hopeful that an update will be rolled out soon.
This latest bug adds to a series of complaints about the new Outlook app, which has struggled to win over users despite Microsoft’s attempts to introduce new features. Reports of performance issues and missing functionalities compared to the previous version have made many users consider alternatives. Some have already made the switch in 2025, finding success with other applications.
“Users may be unable to open Excel files attached to email messages in new Outlook,” Microsoft stated in the alert.
For those impacted by this bug, staying updated on Microsoft’s progress is crucial. As they conduct testing to ensure the issue is resolved, users are encouraged to explore alternative email solutions if they continue to face challenges with Outlook.
With the growing reliance on digital communication and file sharing, this bug highlights the urgent need for reliable software. The disruption caused by these issues can have significant implications for productivity, particularly for professionals who depend on seamless access to their files.
As Microsoft works to address this latest challenge, users are advised to remain vigilant and explore other options available in the market. The user experience with the new Outlook may lead to a broader shift in email management preferences in the coming weeks.
Stay tuned for further updates as Microsoft navigates this critical situation. Don’t forget to share this news with colleagues and friends who might be affected by the Outlook bug.