These files I have are possibly drawing files. A google search on file extensions led me to believe these were bitmap files, but I could not open with a common application such as Paint.
It could be a CALS raster group 1 image…whatever that means!
Anyone have a clue what I need to open these files?
Thanx
Looks like it’s sort of proprietary. Check out this page
Where did this file come from or what generated it?
The *.cal files that I am familiar with are Calibration files - files used to store calibration values for certain equipment. If this is what it is, you should be able to use Notepad or Wordpad to view it. Double-click on the file and select Notepad or Wordpad to open with - make sure you uncheck “Always use the selected program to open files of this type.”
If, after opening it, you see any readable text of any sort, chances are it’s a calibration file.
I’ve opened .cal files using MicroStation. Microstation is a CADD program similar to AutoCADD. You can’t open them directly, you need to reference them into a file. AutoCADD probably has a similar procedure to view them.
Are they on a CD? If so, it may have a view program on it. That’s the only way I’ve ever seen them.
Another thing that might give you a clue - try running this utility on one of the files to see if there are any readable strings. You’ll need to do it from the Command Prompt.
Doesn’t Apple’s calendar application use the “.cal” extension as well?