Corel Paradox secondary index
File type: Various data file
An fdl file is a secondary-index file used by Corel Paradox, a relational database application for Windows.
It contains index information that helps Paradox locate records in a database table.
Found 2 different file type records with the same fdl filename suffix.
File type category:
Various data file
Date updated: October 6, 2026
Corel Paradox was a relational database management system sold by Corel Corporation and included in some editions of Corel WordPerfect Office for Microsoft Windows.
The fdl file stores information for a secondary index. It is a companion file used internally with the related Paradox database files, rather than a standalone database intended for direct editing.
Paradox and this file format are legacy Windows database technology. The file is normally maintained automatically by Paradox when indexes are created or updated.
Open an fdl file through the related database in Corel Paradox on Microsoft Windows. Paradox uses the file internally when working with the table and its secondary index.
The file is not intended to be opened or edited as a document. If Paradox is unavailable, a general database or text editor will not interpret its index information meaningfully.
An fdl file does not have a useful standalone conversion format because it contains index information rather than the database's main records.
To move the data, open the related table in Corel Paradox and export the table to a format supported by the destination database. Secondary indexes generally need to be recreated in the destination system.
Software apps that create fdl files:
Microsoft Windows
Software applications that handle other tasks involving fdl files:
Microsoft Windows
File type category:
Various data file
Date updated: October 6, 2026
The fdl file extension is used by FlashDevelop, a source editor and development environment for Microsoft Windows used by Flash and web developers.
A FlashDevelop layout file preserves a customised workspace arrangement so it can be restored in the application. The format is specific to FlashDevelop and is not intended as a general-purpose layout exchange format.
Open an fdl file with FlashDevelop on Microsoft Windows. The file is intended to be loaded by FlashDevelop as a saved editor layout rather than opened as a document for editing.
An fdl file normally has no useful conversion to another format. To use the layout, load it in FlashDevelop; to create a different layout, adjust the interface in FlashDevelop and save the updated layout there.
Software applications that can open fdl files:
Microsoft Windows
Software applications that can edit fdl files:
Microsoft Windows
Software capable of saving fdl files:
Microsoft Windows
Software apps that create fdl files:
Microsoft Windows
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