For advanced users, the raw acceleration data can be exported as a csv file. This export contains the compressed data from the device, where compression is used when only very small changes in acceleration are detected. To uncompress the data, use the ‘uncompressed sample index’ to indicate when the data is compresssed, and repeat the previous acceleration xyz values for the number of samples indicated.
For convenience, this data processing is included in the uncompressed csv export, however the file size is much larger.
| Column heading | Description |
|---|---|
| Time | Date and time encoded as a floating point number, The integer part of number represents the date. The decimal portion represents the time. (Full details at: http://support.microsoft.com/kb/210276) To view the time in Excel, follow this these instructions |
| Uncompressed sample index | Sample number in the data |
| X | x axis value |
| Y | y axis value |
| Z | z axis value |