You can invoke the file menu from the menu bar, or directly via ALT+F.

There are two basic categories of Daqarta data files: Single-screen files that capture a fixed 1024 points per channel (which may be averages of many individual frames), and DDisk (Direct-to-Disk) files that capture a continuous data stream of arbitrary length. Either type of file may contain mono or stereo input and/or output channels.

Daqarta can read and write several different file types. Besides the standard .WAV format, Daqarta offers its own .DQA file type. This is essentially a .WAV file with added information about relevant Daqarta parameters such as calibration and averaging, as well as Notes, Labels, and Fields. It is the preferred format for data files.

Daqarta also reads and writes headerless raw data files. These are referred to here as .DAT files since that is the extension used when saving them. But you can open a file with any extension, and if Daqarta doesn't recognize it as .DQA or .WAV it will treat it like a .DAT file, allowing you to specify the data format for opening it. If the file is not actually headerless, you can tell Daqarta to skip over a specified mumber of bytes. This allows you to open files of practically any format.

In addition, Daqarta can write (but not read) .TXT files of plain ASCII text. This format allows subsequent analysis by other programs that accept text input.

Daqarta also allows creation of special .CAL or .CRV files to be used for frequency response correction.

After successfully opening a .DAT or other unsupported file, you can save it as .DQA, .WAV, or .TXT. If the file is longer than 1024 samples per channel, only the current 1024 samples will be saved. This allows you to convert or extract data from unsupported files.

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