1) Api for ingest of parameters, the matrix is as following | filename/input-stream | 2003/2007 | Shape | Async | | filename | by extension ( .xls, .xlsx ) | x | false | | input-stream | isXlsx, true for 2007 | x | false | | filename | by extension ( .xls, .xlsx ) | V | false | | input-stream | isXlsx, true for 2007 | V | false | | filename | by extension ( .xls, .xlsx ) | x | true | | input-stream | isXlsx, true for 2007 | x | true | | filename | by extension ( .xls, .xlsx ) | V | true | | input-stream | isXlsx, true for 2007 | V | true |