>> DDY file

DDY file format description

Many people share .ddy files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .ddy file can be edited, converted or printed with. On this page, we try to provide assistance for handling .ddy files.

1 filename extension(s) found in our database.

.ddy - ASHRAE Design Conditions Design Day Data

The DDY data files are related to ASHRAE Design Conditions. DDY file is an ASHRAE Design Conditions Design Day Data.

ASHRAE Design Conditions
Data files
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ASHRAE Design Conditions Design Day Data related extensions:
Ashampoo Media Player Language Data
Ashampoo Internet Accelerator Localisation Data
Ashampoo Media Player Skin
aSc Timetables Data
ARCserve Backup Journal Data
ARM RealView Board/Chip Definition File

Naturally, other applications may also use the .ddy file extension. Even harmful programs can create .ddy files. Be especially cautious with .ddy files coming from an unknown source!

Can't open a .ddy file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .ddy file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

sdy, cdy, dxy, dry, ddt, ddg, dcy, wdy, rdy, dsy, ddu, ddj, dd

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Starmoney Database File
Cinderella Construction File
Besta Electronic Dictionary Video
MAP GMS Installation Document
NETSCAN Decay Search Results
Ready Pro Accounting Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .ddy file format, then write to us!

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