CHANGELOG

This log is intended to keep track of backwards-incompatible changes, including but not limited to API changes and file location changes. Minor behavioral changes may not be included if they are not expected to break existing code.

v0.20.2

Reworked parsing methods to avoid slow regexes (CVE-2024-22363)
HTML properly encode data-v attribute
SYLK read and write error cells

v0.20.1

init use packaged test files to work around GitHub breaking changes
SSF date code rounding to 15 decimal digits (h/t @davidtamaki)
sheet_to_json force UTC interpretation for formatted strings (h/t @Blanay)
QPW extract result of string formula
XLSX parse non-compliant merge cell expressions
NUMBERS correctly handle rows omitted from official exports
DBF parse empty logical field (h/t @Roman91)
dense option added to types
package.json add mini and core scripts to export map (h/t @stof)

v0.20.0

Use UTC interpretation of Date objects for date cells (potentially breaking)
API functions support UTC and local time value interpretations
Export NaN values to #NUM! and infinite values to #DIV/0!

v0.19.3

XLSX Ensure comment address is valid (h/t @slonser)
Enforce Excel worksheet name restrictions
Fixed "Prototype Pollution" vulnerability (CVE-2023-30533)

v0.19.2

XLSX proper decoding of hyperlinks (h/t @tw-yaxu)
XLSX ignore unexpected attributes in rich text (h/t @colin4)
sheet_to_json type fix (h/t @chsdwn)

v0.19.1

Fixed types issue in strict mode (h/t @younes-io)
Numbers 12.2 parsing skip ActivityStream.iwa

v0.19.0

XLSX export hyperlinks compatible with google sheets (h/t Evan Bovie)
NUMBERS export multiple sheets, full worksheet range
formalized dense mode

v0.18.12

package.json added types in exports structure
uncapped NUMBERS single-sheet single-table export
DBF export records using supported codepages

v0.18.11

Base64 input ignore data URI wrapper
Parse ZIP files that use ZIP64 extended information field
More precise handling of time-only values
Threaded Comment fallback text for older Excel

v0.18.10

exports field in package.json to satiate ViteJS and newer tooling
JSC (Safari / Bun) perf, see https://bugs.webkit.org/show_bug.cgi?id=243148
workbook bookType property to denote the origin format when parsed from file
XLSX force export of stub cells with number formats when sheetStubs is set

v0.18.9

XLSX / ODS write defined names
sync defined names to AutoFilter setting on export
1904 date system setting properly roundtripped
ODS read/write number formats

v0.18.8

Plaintext parsing of dateless meridien time values (1:23:45 PM)
Legacy format (SYLK / WK# / Multiplan) minutiae

v0.18.7

Normalized handling of \r and \n newline characters

v0.18.6

Removed all npm dependencies
Auto-correct bad Google Sheets format d.m
NUMBERS write merge cells, cells up to column "ALL"

v0.18.5

Enabled sideEffects: false in package.json
Basic NUMBERS write support

v0.18.4

CSV output omits trailing record separator
Properly terminate NodeJS Streams
DBF preserve column types on import and use when applicable on export

v0.18.3

Removed references to require and process in browser builds

v0.18.2

Hotfix for unicode processing of XLSX exports

v0.18.1

Removed Node ESM build script and folded into standard ESM build
Removed undocumented aliases including make_formulae and get_formulae

v0.18.0

Browser scripts only expose XLSX variable
Module no longer ships with dist/jszip.js browser script

v0.17.4

CLI script moved to xlsx-cli package

v0.17.3

window.XLSX explicit assignment to satiate LWC
CSV Proper formatting of errors
HTML emit data-* attributes

v0.17.2

Browser and Node optional ESM support
DSV correct handling of bare quotes (h/t @bgamrat)

v0.17.1

XLSB writer uses short cell form when viable

0.17.0:

mini build includes ODS parse/write support
DBF explicitly cap worksheet to 1<<20 rows
XLS throw errors on truncated records

v0.16.2

Disabled PRN parsing by default (better support for CSV without delimeters)

v0.16.1

skip empty custom property tags if data is absent (fixes DocSecurity issue)
HTML output add raw value, type, number format
DOM parse look for v / t / z attributes when determining value
double quotes in properties escaped using _x0022_
changed AMD structure for NetSuite and other RequireJS implementations
encode_cell and decode_cell do not rely on encode_col / decode_col

v0.16.0

Date handling changed
XLML certain tag tests are now case insensitive
Fixed potentially vulnerable regular expressions

v0.15.6

CFB prevent infinite loop
ODS empty cells marked as stub (type "z")
cellStyles option implies sheetStubs

v0.15.5

sheets parse option to specify which sheets to parse

v0.15.4

AOA utilities properly preserve number formats
Number formats captured in stub cells

v0.15.3

Properties and Custom Properties properly XML-encoded

v0.15.2

sheet_get_cell utility function
sheet_to_json explicitly support null as alias for default behavior
encode_col throw on negative column index
HTML properly handle whitespace around tags in a run
HTML use id option on write
Files starting with 0x09 followed by a display character are now TSV files
XLS parse references col/row indices mod by the correct number for BIFF ver
XLSX comments moved to avoid overlapping cell
XLSB outline level
AutoFilter update _FilterDatabase defined name on write
XLML skip CDATA blocks

v0.15.1 (2019-08-14)

XLSX ignore XML artifacts
HTML capture and persist merges

v0.15.0

dist/xlsx.mini.min.js mini build with XLSX read/write and some utilities
Removed legacy conversion utility functions

v0.14.5

XLS PtgNameX lookup
XLS always create stub cells for blank cells with comments

v0.14.4

Better treatment of skipHidden in CSV output
Ignore CLSID in XLS
SYLK 7-bit character encoding
SYLK and DBF codepage support

v0.14.3

Proper shifting of addresses in Shared Formulae

v0.14.2

Proper XML encoding of comments

v0.14.1

raw cell objects can be passed to sheet_add_aoa
_FilterDatabase fix for AutoFilter-related crashes
stream.to_json doesn't end up accidentally scanning to max row

0.14.0 (2018-09-06)

sheet_to_json default flipped to raw: true

0.13.5 (2018-08-25)

HTML output generates <br/> instead of encoded newline character

0.13.2 (2018-07-08)

Buffer.from shim replaced, will not be defined in node <=0.12

0.13.0 (2018-06-01)

Library reshaped to support AMD out of the box

0.12.11 (2018-04-27)

XLS/XLSX/XLSB range truncation (errors in WTF mode)

0.12.4 (2018-03-04)

JSZip renamed to JSZipSync

0.12.0 (2018-02-08)

Extendscript target script in NPM package

0.11.19 (2018-02-03)

Error on empty workbook

0.11.16 (2017-12-30)

XLS ANSI/CP separation
'array' write type and ArrayBuffer processing

0.11.6 (2017-10-16)

Semicolon-delimited files are detected

0.11.5 (2017-09-30)

Bower main script shifted to full version
'binary' / 'string' encoding

0.11.3 (2017-08-19)

XLS cell ixfe/XF removed

0.11.0 (2017-07-31)

Strip require statements from minified version
minifier mangler enabled

0.10.9 (2017-07-28)

XLML/HTML resolution logic looks further into the data stream to decide type
Errors thrown on suspected RTF files

0.10.5 (2017-06-09)

HTML Table output header/footer should not include <table> tag

0.10.2 (2017-05-16)

Dates are converted to numbers by default (set cellDates:true to emit Dates)
Module does not export CFB

0.9.10 (2017-04-08)

--perf renamed to --read-only

0.9.9 (2017-04-03)

default output format changed to XLSB
comment text line endings are now normalized
errors thrown on write when worksheets have invalid names

0.9.7 (2017-03-28)

XLS legacy !range field removed
Hyperlink tooltip is stored in the Tooltip field

0.9.6 (2017-03-25)

sheet_to_json now passes null values when raw is set to true
sheet_to_json treats null stub cells as values in conjunction with raw

0.9.5 (2017-03-22)

cellDates affects parsing in non-XLSX formats

0.9.3 (2017-03-15)

XLML property names are more closely mapped to the XLSX equivalent
Stub cells are now cell type z

0.9.2 (2017-03-13)

Removed stale TypeScript definition files. Flowtype comments are used in the xlsx.flow.js source and stripped to produce xlsx.js.
sed usage reworked to support GNU sed in-place form. BSD sed seems to work, but the build script has not been tested on other sed variants:

$ sed -i.ext  [...] # GNU
$ sed -i .ext [...] # bsd

0.9.0 (2017-03-09)

Removed ods.js source. The xlsx.js source absorbed the ODS logic and exposes the ODS variable, so projects should remove references to ods.js

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