File Extension Library

.FDF File Extension

  • Developer by: Adobe Systems
  • Category: Text Files

What are .FDF files and how to open them?

Can't open .FDF file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .FDF file.

What is a .FDF file extension?

.FDF file extension is created by Adobe Systems. .FDF has been classified as Text Files.

.FDF is Acrobat Forms Data Format

Text file format used for data exported from .PDF form fields; typically smaller than PDF files, because they only contain form field data, not the entire form; can be created in Acrobat by selecting Advanced→Forms→Export Forms Data from the menu bar.

FDF files are commonly processed on Web servers by .CGI scripts.

List of all softwares that can open the Acrobat Forms Data Format
Adobe Acrobat DC
Adobe Acrobat DC
File Type 2 Origin Fitting Function Definition File
Developer by: OriginLab Category: Data Files Format: Text

An FDF file is a mathematical fitting function definition file used by Origin, a data analysis and graphing application used by various scientists and engineers. It contains all the properties about a fitting function, such as the function type, constraints, fitting parameters, a function expression, variables, and a description. FDF files may come included with Origin or be user-defined.

User-defined FDF files are created using the Fitting Function Builder in Origin. You can access the tool by selecting Tools → Fitting Function Builder.... Choose "Create a New Function" to create an FDF file or "Edit a User-defined Function" to edit an FDF file. You can also view your FDF files by selecting Tools → Fitting Function Organizer.... You can also open FDF files with a text editor since the fitting function definition is stored in plain text.

FDF files that come packaged with the program are located in the "FitFunc" subfolder of the Origin program folder. However, user-defined FDF files are typically saved in the "FitFunc" subfolder of the "User Files" folder in the Origin program folder.

List of all softwares that can open the Origin Fitting Function Definition File
OriginLab Origin

How to fix problems with .FDF files

  1. You need to update the application that you normally use to open .FDF files. Only the latest version of the software supports the current .FDF file format
  2. You need to check the .FDF file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)