FirstLine returns the first line of the file.

LastLine returns the last line of the file.

NewProgressScanner returns a Scanner with progress indicator.

NewRangeReader returns a RangeReader, which will read the range of content from file.

SplitLineChunks splits file into chunks.

OffsetRange represents a content block of a file.

A RangeReader is used to read a range of content from a file.