Microsoft Office Tutorials and References
In Depth Information
Block Dangerous Excel File Types
Excel File Types
You can configure Excel to block potentially
dangerous file types that may contain macro
viruses and other malicious code.
When you open a workbook in Protected
View, Excel gives you the option of making
changes to the workbook by clicking the
Enable Editing button in the Protected View
message bar. However, there may be some
Excel file types that you never want to allow to
be opened outside of Protected View. These
might include old Excel file formats such as
Excel 95 workbooks, or Excel 2007 macro-
enabled files. For more information, see the
section, “Open a Workbook in Protected
You can use the Excel File Block settings to
configure the program to always open certain
file types in Protected View, as well as to
disable the Enable Editing button.
1 Click File.
2 Click Options.
The Excel Options dialog
3 Click the Trust Center tab.
4 Click Trust Center