Did your computer fail to open a DDY file? We explain what they are used for and recommend software that we know can open or otherwise handle your .DDY files.
What is a DDY file?
A .DDY file is an ASHRAE Design Conditions Design Day data file. Through our analysis of DDY files, we know that one use of the format is ASHRAE Design Conditions Design Day data. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!
Suggest another file format using extension DDY
While we know of one file format using the .DDY file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .DDY file.
Various DDY file openers, viewers, etc.
These apps are known to open certain types of DDY files. Remember, different programs may use DDY files for different purposes, so you may need to try out a few of them to be able to open your specific file.