Types of UNF Files

Chief UNF Description

.UNF

File Format:	.unf
Type:	UNIF ROM File

UNF file is an universal Image ROM format used by Nintendo Entertainment System (NES) or Famicom video games. UNF files can be opened and played using the Nestopia emulator.

Developer:	Open Source
Function:	Game Files
Location:	HKEY_CLASSES_ROOT\.unf

Software Programs That Open The UNIF ROM File:

Nestopia by Open Source

Windows

Mac

Linux

More UNF Files

.UNF

File Format:	.unf
Type:	Btreive Unformatted Data

Data file associated with Btreive, a database manager for NetWare and Windows. UNF file contains unformatted data used for the creation of indexed files using the b-tree organization method.

Developer:	Novell, Inc.
Function:	Data Files

Software Programs That Open Btreive Unformatted Data Files:

NetWare by Novell, Inc.

Compatible with:

Windows

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Troubleshooting Problems Opening UNF Files

Frequent UNF Opening Issues

Nestopia Isn't There

Double-clicking your UNF file prompts the message "%%os%% Can't Open UNF File". If this is the case, it's usually due to the fact that you do not have Nestopia for %%os%% installed on your computer. You won't be able to double-click to open your UNF because your OS doesn't know what to do with it.

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

Outdated Nestopia

Occasionally, you might have an outdated version of Nestopia installed that's incompatible with your UNIF ROM File type. If you do not have the proper version Nestopia (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Find clues on the correct software version by right-clicking your UNF file and clicking "Properties".

Summary: In either case, the majority of problems opening UNF files are related to not having the correct software application installed on your computer.

Other UNF File Issues

Although you might already have Nestopia or another UNF-associated software installed on your computer, you can still encounter problems opening UNIF ROM File files. Other UNF opening errors can be created by other system problems inside of %%os%%. Other contributing causes:

• UNF file type Registry entries are wrong
• Corruption of the UNF file description inside the Registry
• Corrupt install of Nestopia or other UNF-related program
• Something has caused file corruption of your UNF
• UNF file integrity has been compromised by malware
• Device drivers of the hardware associated with your UNF file are corrupt or out-of-date
• Insufficient system resources to successfully open UNIF ROM File files