If Excel keeps blocking files from being inserted, chances are the file is blocked by Trust Center, or maybe the workbook or locked. In some situations, we could be dealing with a corrupted file.

If you see the “The file couldn’t open in protected view” error while opening Microsoft Excel, the solutions listed in this post may help you resolve the issue ...

Microsoft has announced that it will start disabling external workbook links to blocked file types by default between October 2025 and July 2026. After the rollout ...

Malware can exploit your computer and your private information, but only if it manages to install itself. Microsoft Excel files -- and other formats that Microsoft Office applications generate -- can ...

Along with the formulas, functions, calculations and data you enter into a Microsoft Excel worksheet, the program also accepts files from other programs as insertions into your documents. If you ...