The table below provides some useful information about the .efx extension. It answers questions such as:
- What is the .efx file?
- What program do I need to open a .efx file?
- Where can I find the specifications for .efx?
- How can I convert .efx file to another format?
We hope you find this page helpful and a valuable resource.
Details of extension .efx
Recommended: Click here to run a free instant scan for .efx related errors
1 extension(s) and 0 alias(es) found in database.
| Extension: | .efx |
|---|---|
| Type: | eFax Document |
| Category: | Document |
| Mime type: | image/efax |
| Description: | |
| EFX file is an eFax Document. eFax is a service of j2 Global Communications that allows users to receive and send fax documents in digital format (e.g., in email). | |
| [Detailed description] [Sample not yet available] | |
| Open with: | eFax Messenger |
| Program name: | none |
| Related links: | |
| none | |
| Aliases: | |
| none | |
| Related extensions: | |
| apx, awd, can, fax, fpx, rsb, tif, wfx | |
Cannot open .efx files on your system?
When windows gives you an error message saying that it cannot open
.efx files, this means either:
- You need to identify a program that can open the file or
- Your registry may be damaged.
RECOMMENDED:
In both cases it is strongly recommended that you run a
free scan for registry errors.

