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Tag Archives: Excel
Excel freezes and slow opening/closing due to Trend Micro
[German]Users are complaining that since the June 2025 updates, Microsoft Excel has been causing problems and freezes on startup or is very slow to open and close. The cause may be Trend Micro version 6.7.3981/14.3.1311.
Excel can't load documents with […] in file name after May 2025 update
[German]On May 13, 2025 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for Microsoft Office 2016, as well as the C2R variants (Office 2016-2021 and 365) and other products. In the meantime, I have received some … Continue reading
Posted in issue, Office, Security, Software, Update
Tagged Excel, issue, Patchday 5.2025, Update
3 Comments
Word/Excel 2016 crashing after April 2025 update KB5002700
[German]Die Sicherheitsupdates vom 8. April 2025 für Microsoft Office scheinen einige Kollateralschäden zu verursachen. Neben dem Outlook 2016-Kalender-Problem scheint das Microsoft das Office-Update KB5002700 auch Word 2016 sowie Excel 2016 zum Absturz zu bringen.
Excel 2016 can no longer load add-ins after Nov. 2024 update KB5002653
[German]On November 12, 2024, Microsoft released the security update KB5002653 for Microsoft Excel 2016 (MSI version) to close various vulnerabilities. After installing the update, add-ins can no longer be loaded.
Posted in issue, Office, Software, Update
Tagged Excel, issue, Patchday 11.2024, Security, Update
2 Comments
Office trouble: Excel calculation issues, and Outlook starts in safe mode (January 2023)
[German]In this post I would like to put online a small collection of problems or inconsistencies around Microsoft Office. The problems have come to my attention through the readership in the last few days. Possibly they are isolated cases, but … Continue reading
Issue with Excel 2013 Update KB5002242 (August 9, 2022)
[German]Microsoft has released security update KB5002242 for Excel 2013 on August 9, 2022 (Patchday). The patch is supposed to eliminate both a vulnerability and a bug in this Excel version. However, there is feedback from readers on the blog that … Continue reading
Posted in issue, Office, Security, Update
Tagged Excel, Patchday 8.2022, Problem, Security, Update
14 Comments
Office 365 version 2206.15330.20196: Excel bug prevents display of cell contents (OP396850)
[German]Users who have upgraded Microsoft Office 365 as a Click-2-Run variant to version 2206.15330.20196 (released June 29, 2022) report a strange bug. In Microsoft Excel, the contents of cells (rows and/or columns)in a spreadsheet are no longer displayed, but are … Continue reading
Malicious CSV files can install BazarBackdoor
[German]Cyber criminals have found a way to abuse text-based CSV files in order to install BazarBackdoor malware on victims' systems. Security researchers probably came across this fact while monitoring a phishing campaign. The culprit is the ability to access the … Continue reading
Microsoft disables Excel 4.0 macro support by default
[German]Good news in terms of security and Office, because Microsoft finally plugs a gateway for malware by disabling the default support for Excel 4.0 macros. This mitigates an announced and long overdue vulnerability.
Excel XLL addins abused for malware installation
[German]Here is another security topic, dealing with attacks via Excel XLL addins ein. This attack method has been known since July 2021 and is used by malware groups. I just came across a case where this approach was used to … Continue reading