Added

• Add support for IFS() logical function #1442
• Add Cell Address Helper to provide conversions between the R1C1 and A1 address formats #1558
• Add ability to edit Html/Pdf before saving #1499
• Add ability to set codepage explicitly for BIFF5 #1018
• Added support for the WEBSERVICE function #1409

Fixed

• Resolve evaluation of utf-8 named ranges in calculation engine #1522
• Fix HLOOKUP on single row #1512
• Fix MATCH when comparing different numeric types #1521
• Fix exact MATCH on ranges with empty cells #1520
• Fix for Issue #1516 (Cloning worksheet makes corrupted Xlsx) #1530
• Fix For Issue #1509 (Can not set empty enclosure for CSV) #1518
• Fix for Issue #1505 (TypeError : Argument 4 passed to PhpOffice\PhpSpreadsheet\Writer\Xlsx\Worksheet::writeAttributeIf() must be of the type string) #1525
• Fix for Issue #1495 (Sheet index being changed when multiple sheets are used in formula) #1500
• Fix for Issue #1533 (A reference to a cell containing a string starting with "#" leads to errors in the generated xlsx.) #1534
• Xls Writer - Correct Timestamp Bug #1493
• Don't ouput row and columns without any cells in HTML writer #1235