An isds file extension is related to the IRAC Science Data Simulator. An isds file stores output data.
ISDS file extension - IRAC Science Data Simulator output data
What is isds file? How to open isds files?
File type specification:
The isds file extension is associated with the IRAC Science Data Simulator (also known as ISDS), developed by Smithsonian Astrophysical Observatory (SAO).
The isds file contains output data utilized by ISDS.
This isds 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.