Format of specified cell using 0-based row and column indexes
Value of specified cell using 0-based row and column indexes
ItemOffsetMapping which describes sizes and offsets to start of columns
ItemOffsetMapping which describes sizes and offsets to start of rows
Return a snapshot to use when accessing values at a consistent point in time
Subscribe to data changes
Reference implementation of SpreadsheetData
Editable in-memory spreadsheet data container. Starts out empty. Use the API to fill with data!
Intended for use as a mock, to compare with an optimized implementation when testing and for simple sample apps. Simplest possible implementation, no attempt at optimization.