All about FDM Files

The FDM file type is primarily associated with FormDocs.

FDM	File extension: FDM
	File type:	data container

What is an FDM file?

FDM files mostly belong to FormDocs. An FDM file can serve different purposes depending on its source. It is not a single standard format but a tag used by various systems:

FormDocs Form: This file uses the Microsoft Compound format to hold form data from systems like FormFlow 99. For more details, visit FormDocs.

Fragmented MP4: In some cases, an FDM file is a piece of a video file. It contains parts of an MP4 video and is managed by Free Download Manager, with further support from tools like FDM Lib or Any Video Converter. Learn more at Free Download Manager.

Lucene Fields Index Meta: Other FDM files hold metadata for Lucene indexes. They are part of Apache Lucene’s system that supports field indexing. See details at Apache Lucene.

FilExt.com note: Use the application that created the file to open and view it, as the file is meant for internal data storage and processing.

How do you open FDM files?

You need a suitable software like FormDocs to open an FDM file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your FDM file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a FDM file directly in the browser:. Just drag the file onto this browser window and drop it.

Online FDM Text Viewer

Choose your .fdm file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert FDM files:

FormDocs
See the previous paragraphs to learn more about the main application. FDM files are often referred to as FormDocs data files because this type of file is primarily created or used by this software.
Exchange Forms Designer (Form Definition) by Microsoft Corporation
Exchange Forms Designer is a high level messaging application development tool used to create electronic forms for common paper-oriented tasks. FDM files include the form executable code and information found in the .CFG file used for installing the form.
Floppy Disk Manager
The identifying characters used for this association are - Hex: 1A 46 44 4D, ASCII: .FDM. Related links: Software?

Technical Data for FDM File Extension

File classification:

Data

Related files:

fdf, fdx, idx, cfs, cfe, fdmdownload, fmd, mp4, exe, efp, xsi, wfd, doc, xml

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: FDM.Project, FileType: FDM Project, AppName: FDM
EXEFile: FDM.exe

ProgramID: FDMFile, FileType: Microsoft Office Outlook Form Definition

an fdm data container is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with FDM files

Associate the FDM file extension with the correct application.
Update your software that should actually open data containers. Because only the current version supports the latest FDM file format. Search, therefore, e.g. on the manufacturer website after an available FormDocs update.
To make sure that your FDM file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .FDM file online - secure, fast, and no downloads needed.