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Pick the Right Program
Start by choosing the right program to open your QDA file. A few of the most common programs used to open QDA files are listed below. One of them should be able to open your QDA file.
- KaleidaGraph Data File
- Quadruple D Archive
Note the File Type
Other programs may be able to open your QDA file, depending on the type of file it is. You can find the file type listed in the file’s properties. On a Windows PC, right-click the file, click "Properties", then look under “Type of File.” On a Mac computer, right-click the file, click “More Info,” then look under “Kind”.
Tip: If it’s the QDA file extension, it probably falls under the Compressed Files type, so any program used for Compressed Files should open your QDA file.
Ask the Developer
Contacting the software developer is another easy way to get help opening a QDA file. You can find the developers for the most common programs used to open QDA files in the list below.
| Software | Developer |
|---|---|
| KaleidaGraph Data File | Synergy Software |
| Quadruple D Archive | Microsoft Programmer |
Use a Universal File Viewer
When all else fails, a universal file viewer is the best way to open a QDA file. Programs like File Magic (Download) can open many different types of files, depending on the format. Although, some files may not be compatible with these programs. If your QDA file isn’t compatible, it will only open in binary format.
Recommended Download
Download Universal File Viewer (File Magic)
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1File types that are unsupported can be opened in binary format.
