XLS, XLSX: Microsoft Excel Format

As with CSV files, the first row in a sheet may contain channel names and units. Unlike CSV files, the name and unit string are not enclosed in double quotation marks. For non-frequency based data, units may be enclosed in parentheses. For example:

Complex data is handled as follows:

• The first channel name must be "f", and may have units.
• Following channels are in pairs, either

• Re(name) [units], Im(name) [units] where Re() and Im() are for complex data in real and imaginary form, or
• Abs(name) [units], Phi(name) [units], where Abs() and Phi() specify complex data in magnitude and phase.

Name is the channel name, the same for each pair of channels. Units are optional, SI if none specified. Square brackets must be used if units are desired for complex data.

Example:

f [kHz] Abs(a) [mV] Phi(a) [deg]