The ASCII Data File Format

The ASCII data file format is the most commonly used file format for measurement files. It is a general text format that can be imported e.g. into Microsoft Excel or MATLABTM (MathWorks Inc). It is the similar way MATLABTM stores a data matrix in an ASCII file.

The measurements of a specific transducer are stored as a single column in the ASCII file. So the data in the ASCII file can be interpreted as a matrix whose columns are the different transducers and the rows the measurements of these.

An example (Examples Folder: \Building Model\Mes31set.asc) of a data file is shown below:

The Data File Format

In this case there are four columns corresponding to four transducers and rows which corresponds to the samples of the transducers. The measurements of the first transducer is column number 1 from the left.

The following should noted:

  • All transducers must have the same number of samples.

  • There can be other information in the beginning of the file, such as a header.

  • Formatting such as scientific or fixed formats are allowed.

  • The delimiters between the samples should be either blank spaces or tabs.

Other Available Format

The table below list all available formats of the current version:

Extension Description
txt / asc Text file format, as described above
bin SVS binary file format
uff / unv Universal File Format. (Data set #58)
hdr TEAC Header file format (TAFFMat)
ghf GeoSIG Header File Format (TAFFMat)
gsdat GeoSIG Data Stream File Format
dat Diadem Header File Format
csv Kyowa Header File Format
evt Kinemetrics Altus File Format
wav Wave file format, (16 bit uncompressed)
tad Terrascience (Weir Jones) data file format
vif VDAS input file format
lvm LabView measurement file format


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