.ICC and .ICM files

[RJ_]

My print shop has sent me four profiles to use. Two different printers, each with two different paper types. Three of the files are .ICM and one is .ICC. A quick web search says they are interchangeable. PS only sees the .ICC file. Do I simply rename the others to ICC to use them for softproofing or something else?

[Damien Symonds]

1 hour ago, RJ_ said:

PS only sees the .ICC file.

Are you certain of that?  Where are you looking?

The reason I ask is this: https://www.damiensymonds.net/icc-profiles

[RJ_]

Sweet. Found them. Any way of making a folder so they group together?

[Damien Symonds]

I've never found a way, sorry.  If you find one, can you let me know?

[RJ_]

Best I could do before getting stuck down a rabbit hole was to rename the internal description with my initials and then a number. This at least grouped them together. Hat tip to https://imagescience.com.au/knowledge/using-icc-output-profiles for the knowledge.