Varieties of EXF Files

Primary EXF File Association

.EXF

Formatting:	.exf
Group:	Exchangeable Image File Format

EXF is a file format developed by the Japan Electronic Industry Development Association (JEIDA) principally for use by digital cameras.

Company:	Open Source
Division:	Camera Raw Files
Location:	HKEY_CLASSES_ROOT\.exf

Software Programs That Open The Exchangeable Image File Format:

Photo Studio by Open Source

Windows

Additional EXF Files

.EXF

Formatting:	.exf
Group:	CostX Data Exchange File

EXF file extension is related to CostX program solutions used to prepare estimates, bills of quantities in construction industry, developed by Exactal Technologies.

Company:	Exactal
Division:	Data Files

Software Programs That Open CostX Data Exchange File Files:

CostX by Exactal

Compatible with:

Windows

.EXF

Formatting:	.exf
Group:	ExactFile Checksum Digest File

EXF file extension is related to ExactFile file integrity verification tool. EXF file used in the program contains checksum digest data.

Company:	StudyLamp Software
Division:	Data Files

Software Programs That Open ExactFile Checksum Digest File Files:

ExactFile by StudyLamp Software

Compatible with:

Windows

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Troubleshoot EXF Files

Troubles Opening EXF Files

Photo Studio Removed

When trying to open your EXF file, you get the error "Can't Open EXF File Type". Usually, this is because you do not have Photo Studio for %%os%% installed. This will prevent you from double-clicking to open the EXF file because the OS doesn’t know how to handle it.

Tip: When you have another program installed that you know will open your EXF, you can select it from the other programs listed (see "Show Apps").

Wrong Version of Photo Studio is Installed

In some cases, you might have a newer (or older) version of a Exchangeable Image File Format file that is unsupported by your installed application version. If you've got the wrong version of Photo Studio installed, you'll need to install the correct version. This issue mainly occurs when your Exchangeable Image File Format file was created by a newer version of Photo Studio than you have on your PC.

Tip: You can sometimes get hints about the right program version by right-clicking on the EXF file, selecting "Properties", and looking at the version information.

Summary: Not having the right Photo Studio version on your computer can cause problems opening EXF files.

More Causes of Problems Opening EXFs

Even with the correct version of Photo Studio installed, you can still experience difficulties opening EXFs. If you are still having problems opening EXF files, there may be other issues that are preventing you from opening these files. Additional factors include:

• File references in the Windows Registry for EXF are wrong
• Corruption of the EXF file description inside the Registry
• Incomplete or bad installation of a software application associated with the EXF format
• The EXF itself is corrupted
• EXF file integrity has been compromised by malware
• Hardware related to EXFs has device driver corruption
• Windows cannot load your Exchangeable Image File Format file due to insufficient resources (eg. RAM)