Affymetrix is DNA microarrays manufacturing company. For data storing CEL file format is used by this company.
This file format is used to store the result of intensity calculations which are on pixel values of DAT file. The format used to store data in CEL format is similar to INI format of Windows. The data stored in file is divided into different sections. In start of section the name of the section is mentioned. Generally the sections which are added in this file include CEL, Header, Intensity, Masks, Outliners and Modified sections. Each section has its own detailed information.
In addition to the problem described above, i.e. the lack of the appropriate application to support the .CEL file, there may be several reasons that cause problems with opening and operation of the data format:
A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .CEL file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .CEL file, so download the update and check again.
If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:
It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.
There may be several reasons why you cannot open the file with .CEL extension. Directly on this website you can find a solution of the most common problem with the .CEL file – that you do not have on your computer the appropriate program to open the file.