An icr file extension is related to the NCSA Telnet Interactive color raster graphic data format.
There is one other file type using
the ICR file extension!
.icr - Image Comparer result
ICR file extension - NCSA Telnet Interactive color raster graphic data
What is icr file? How to open icr files?
File type specification:
The icr file extension is associated with the NCSA Telnet Interactive color raster graphic data format.
NCSA Telnet for the PC (DOS only) and NCSA Telnet for the Macintosh were developed in projects whose funding ended in late 1994 and 1995.
This icr file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.