Issues

• ODS: reject inconsistent local and central ZIP member names

  fix in progress
  tafia/calamine#748 · Filter by author Goldziher opened on Oct 18, 2026
  

• ODS: indented table rows fail on inter-cell XML whitespace

  fix in progress
  tafia/calamine#743 · Filter by author Goldziher opened on Oct 16, 2026
  2

• Bug: BIFF5 PtgStr is parsed with a flags byte

  fix in progress
  tafia/calamine#732 · Filter by author shinichi1729 opened on Sep 30, 2026

• memory allocation of N bytes failed then opening Sheet

  awaiting user feedbackbugfix in progress
  tafia/calamine#726 · Filter by author AveNRU opened on Sep 25, 2026
  2

• feature request: Add serde support for Jiff date/time types

  tafia/calamine#725 · Filter by author MoNaEcho opened on Sep 17, 2026
  1

  

• Bug: xlsx: any unrecognised t="b" cell value silently decodes as Bool(true)

  bugfix in progress
  tafia/calamine#724 · Filter by author omarirfa opened on Sep 13, 2026
  3

• ExcelDateTime::to_ymd_hms_milli panics on large serial values

  bugfix in progress
  tafia/calamine#722 · Filter by author DRMacIver opened on Sep 4, 2026
  1

  

• Bug: panic in parse_formula()

  awaiting user feedbackbug
  tafia/calamine#721 · Filter by author bespegit opened on Sep 2, 2026
  2

• ods: a cell whose cached value is an error reads as an empty string

  fix in progress
  tafia/calamine#720 · Filter by author sjvrensburg opened on Sep 1, 2026

• xls: every cross-sheet reference in a decoded formula names the wrong sheet

  fix in progress
  tafia/calamine#719 · Filter by author sjvrensburg opened on Sep 1, 2026

• Help wanted: additional maintainer support

  tafia/calamine#698 · Filter by author jmcnamara opened on Jul 27, 2026
  4

• Cell reference parsing overflows u32 unchecked; MAX_ROWS/MAX_COLUMNS are warnings only

  tafia/calamine#694 · Filter by author krickert opened on Jul 26, 2026
  1

• Range::from_sparse densifies without bound: a 2 KB well-formed xlsx aborts the process

  tafia/calamine#693 · Filter by author krickert opened on Jul 26, 2026
  1

• Reversed <dimension ref> underflows unchecked u32 subtraction in get_dimension and Dimensions::len

  tafia/calamine#692 · Filter by author krickert opened on Jul 26, 2026
  1

• read_shared_strings reserves Vec<String> capacity from unbounded attacker-controlled uniqueCount

  bugnext_release
  tafia/calamine#684 · Filter by author devsamhan opened on Jul 19, 2026
  4

  

• Release preparation

  next_release
  tafia/calamine#586 · Filter by author jmcnamara opened on Nov 20, 2025
  17

• [Bug] Hitting dimension arrays of non-standard size, 16 instead of 14

  bugxls
  tafia/calamine#577 · Filter by author sftse opened on Oct 30, 2025
  11

• [Bug/Feature] Unable to get PtgExp (array/shared) formula from xls file

  bughelp wantedxls
  tafia/calamine#443 · Filter by author CuteLicense opened on Jun 20, 2024
  3

• [Feature Request] Row/Column Properties

  enhancementnext_release
  tafia/calamine#417 · Filter by author bonsairobo opened on Mar 26, 2024
  3

  

• Feature: Defined names from workbook returned as Range

  enhancement
  tafia/calamine#407 · Filter by author DarkwingDuck48 opened on Feb 14, 2024
  

• Feature request: format-aware version of as_datetime()

  formatting
  tafia/calamine#400 · Filter by author Expurple opened on Feb 2, 2024
  1

• ODS: extract error value from cell

  ods
  tafia/calamine#355 · Filter by author dimastbk opened on Sep 8, 2023
  3

• Multi-threaded .xlsx row loading

  perf
  tafia/calamine#346 · Filter by author eliasjonsson023 opened on Aug 6, 2023
  6

• Please considering adding a calamine::Range::into_rows method

  tafia/calamine#173 · Filter by author hronro opened on Jun 13, 2020

• [Feature request] getting the name of the author and other metadata

  help wanted
  tafia/calamine#149 · Filter by author irevoire opened on Apr 21, 2019