Format of specified cell using 0-based row and column indexes
Value of specified cell using 0-based row and column indexes
Number of columns in the spreadsheet
ItemOffsetMapping which describes sizes and offsets to start of columns
Number of rows in the spreadsheet
ItemOffsetMapping which describes sizes and offsets to start of rows
Return a snapshot to use when accessing values at a consistent point in time
Check whether value and format are valid to set for specified cell
Ok if the value and format are valid
Set value and format of specified cell
Ok if the change was successfully applied
Subscribe to data changes
Interface used to access the data in a spreadsheet
The data exposed through the interface may change over time outside of any changes made through the interface. The caller can use the subscribe method to be notified when the data changes. When reading data, the caller must first request a snapshot using getSnapshot. All values returned by gettors are relative to a specified snapshot. The values will be consistent with each other as long as the same snapshot is used.