The IDF file format is a MIDI instrument definition file. MIDI is considered to be a technical standard which defines the protocol and allows a number of electronic music instruments to communicate with computers.
A specific IDF file contains definition of a specific instrument. This file is used to define the parameters of MIDI based controller or instrument. The data stored in such files include instrument ID, channel assignment of instrument, its key map and other information which is required for smooth working of the instrument. This file generally contains information in the form of HEX data read by application.
In addition to the problem described above, i.e. the lack of the appropriate application to support the .IDF 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 .IDF file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .IDF 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 .IDF extension. Directly on this website you can find a solution of the most common problem with the .IDF file – that you do not have on your computer the appropriate program to open the file.