Files with dch file extension can be also found as old drawings made in software called Draft Choice.
There is one other file type using
the DCH file extension!
.dch - DipTrace schematics
DCH file extension - Draft Choice drawing
What is dch file? How to open dch files?
File type specification:
The dch file extension seems to be related to Draft Choice, a tool drawing tool developed by the Trius, Inc.
The dch file stores some kind of drawing created in Draft Choice.
The Draft Choice seems to be obsolete product.
This dch 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.