Javadoc
[Optional] The number of rows at the top of a sheet that BigQuery will skip when reading the
data. The default value is 0. This property is useful if you have header rows that should be
skipped. When autodetect is on, behavior is the following: * skipLeadingRows unspecified -
Autodetect tries to detect headers in the first row. If they are not detected, the row is read
as data. Otherwise data is read starting from the second row. * skipLeadingRows is 0 -
Instructs autodetect that there are no headers and data should be read starting from the first
row. * skipLeadingRows = N > 0 - Autodetect skips N-1 rows and tries to detect headers in row
N. If headers are not detected, row N is just skipped. Otherwise row N is used to extract
column names for the detected schema.