Microsoft FrontPage file
File type: Various data file
The fpopen file contains data used by Microsoft FrontPage, a web-editing application.
File type category:
Various data file
Date updated: October 3, 2026
Record marked as obsolete and not updated for a long time.
The fpopen file extension is associated with Microsoft FrontPage, software from Microsoft for creating and editing web pages on Microsoft Windows.
The fpopen file stores data used by FrontPage.
Microsoft FrontPage is obsolete, and the fpopen format is no longer in active use.
Open the file with Microsoft FrontPage on Microsoft Windows. Because an fpopen file contains FrontPage data, it may not display meaningful content when opened separately; open the associated FrontPage web or project in the application instead.
An fpopen file cannot normally be converted independently because it contains supporting data for Microsoft FrontPage. If the related web project is available, open it in FrontPage and export or publish the web pages to HTML.
Software applications that handle other tasks involving fpopen files:
Microsoft Windows
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