>> QUAL file

QUAL file format description

Many people share .qual files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .qual file can be edited, converted or printed with. On this page, we try to provide assistance for handling .qual files.

1 filename extension(s) found in our database.

.qual - Quality Score File

The QUAL data files are related to NextGENe. QUAL file is a Quality Score File. In bioinformatics, QUAL is a quality score file, which contains a score for each base in each sequence included in the FASTA file.

Data files
- / -
Quality Score File related extensions:
SMS Protocol Description Unit
TestComplete Log File
SMART Response Teacher Database
Liquid Injection Molding Simulation Data
ProfExam Exam Data
Skim Notes File

Naturally, other applications may also use the .qual file extension. Even harmful programs can create .qual files. Be especially cautious with .qual files coming from an unknown source!

Can't open a .qual file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .qual file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

qal, qua, ual

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

OpenMap Quality Data
Avira AntiVirus Quarantined File
Entrust Auto-enrollment Server Unattended Login Credentials

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .qual file format, then write to us!