Security News
Cloudflare Adds Security.txt Setup Wizard
Cloudflare has launched a setup wizard allowing users to easily create and manage a security.txt file for vulnerability disclosure on their websites.
Simple data wrapper that attempts to wrap SheetJS libraries to provide a uniform way to access data from Excel and other spreadsheet files:
Excel files are parsed based on the content (not by filename). For example, CSV files can be renamed to .XLS and excel will do the right thing.
Supported Formats:
Format | Read | Write |
---|---|---|
Excel Worksheet/Workbook Formats | :-----: | :-----: |
Excel 2007+ XML Formats (XLSX/XLSM) | :o: | :o: |
Excel 2007+ Binary Format (XLSB BIFF12) | :o: | :o: |
Excel 2003-2004 XML Format (XML "SpreadsheetML") | :o: | |
Excel 97-2004 (XLS BIFF8) | :o: | |
Excel 5.0/95 (XLS BIFF5) | :o: | |
Excel 4.0 (XLS/XLW BIFF4) | :o: | |
Excel 3.0 (XLS BIFF3) | :o: | |
Excel 2.0/2.1 (XLS BIFF2) | :o: | :o: |
Excel Supported Text Formats | :-----: | :-----: |
Delimiter-Separated Values (CSV/TSV/DSV) | :o: | :o: |
Data Interchange Format (DIF) | :o: | :o: |
Symbolic Link (SYLK/SLK) | :o: | :o: |
Space-Delimited Text (PRN) | :o: | |
UTF-16 Unicode Text (TXT) | :o: | |
Other Workbook/Worksheet Formats | :-----: | :-----: |
OpenDocument Spreadsheet (ODS) | :o: | :o: |
Flat XML ODF Spreadsheet (FODS) | :o: | :o: |
Uniform Office Format Spreadsheet (标文通 UOS1/UOS2) | :o: | |
dBASE II/III/IV / Visual FoxPro (DBF) | :o: | |
Other Common Spreadsheet Output Formats | :-----: | :-----: |
HTML Tables | :o: | |
Markdown Tables | :o: | |
Other Output Formats | :-----: | :-----: |
XML Data (XML) | :o: | |
SocialCalc | :o: | :o: |
$ npm install -g j
var J = require('j');
J.readFile(filename)
opens the file specified by filename and returns an array
whose first object is the parsing object (XLS or XLSX) and whose second object
is the parsed file.
J.utils
has various helpers that expect an array like those from readFile:
Format | util helper |
---|---|
Excel 2007+ XML Formats (XLSX/XLSM) | to_xlsx/to_xlsm |
Excel 2007+ Binary Format (XLSB BIFF12) | to_xlsb |
Excel 2.0/2.1 (XLS BIFF2) | to_biff2 |
Delimiter-Separated Values (CSV/TSV/DSV) | to_csv/to_dsv |
Data Interchange Format (DIF) | to_dif |
Symbolic Link (SYLK/SLK) | to_sylk |
OpenDocument Spreadsheet (ODS) | to_ods |
Flat XML ODF Spreadsheet (FODS) | to_fods |
HTML Tables | to_html |
Markdown Tables | to_md |
XML Data (XML) | to_xml |
SocialCalc | to_socialcalc |
JSON Row Objects | to_json |
List of Formulae | to_formulae |
The node module ships with a binary j
which has a help message:
$ j --help
Usage: j.njs [options] <file> [sheetname]
Options:
-h, --help output usage information
-V, --version output the version number
-f, --file <file> use specified file (- for stdin)
-s, --sheet <sheet> print specified sheet (default first sheet)
-N, --sheet-index <idx> use specified sheet index (0-based)
-p, --password <pw> if file is encrypted, try with specified pw
-l, --list-sheets list sheet names and exit
-o, --output <file> output to specified file
-B, --xlsb emit XLSB to <sheetname> or <file>.xlsb
-M, --xlsm emit XLSM to <sheetname> or <file>.xlsm
-X, --xlsx emit XLSX to <sheetname> or <file>.xlsx
-Y, --ods emit ODS to <sheetname> or <file>.ods
-2, --biff2 emit XLS to <sheetname> or <file>.xls (BIFF2)
-T, --fods emit FODS to <sheetname> or <file>.fods (Flat ODS)
-S, --formulae print formulae
-j, --json emit formatted JSON (all fields text)
-J, --raw-js emit raw JS object (raw numbers)
-A, --arrays emit rows as JS objects (raw numbers)
-x, --xml emit XML
-H, --html emit HTML
-m, --markdown emit markdown table
-D, --dif emit data interchange format (dif)
-K, --sylk emit symbolic link (sylk)
-E, --socialcalc emit socialcalc
-F, --field-sep <sep> CSV field separator
-R, --row-sep <sep> CSV row separator
-n, --sheet-rows <num> Number of rows to process (0=all rows)
--sst generate shared string table for XLS* formats
--compress use compression when writing XLSX/M/B and ODS
--perf do not generate output
--all parse everything
--dev development mode
--read read but do not print out contents
-q, --quiet quiet mode
Please consult the attached LICENSE file for details. All rights not explicitly granted by the Apache 2.0 license are reserved by the Original Author.
Using git textconv, you can use J
to generate more meaningful diffs!
One-time configuration (misc/gitdiff.sh
):
#!/bin/bash
# Define a sheetjs diff type that uses j
git config --global diff.sheetjs.textconv "j"
# Configure a user .gitattributes file that maps the xls{,x,m} files
touch ~/.gitattributes
cat <<EOF >>~/.gitattributes
*.xls diff=sheetjs
*.xlsb diff=sheetjs
*.xlsm diff=sheetjs
*.xlsx diff=sheetjs
*.XLS diff=sheetjs
*.XLSB diff=sheetjs
*.XLSM diff=sheetjs
*.XLSX diff=sheetjs
EOF
# Set the .gitattributes to be used for all repos on the system:
git config --global core.attributesfile '~/.gitattributes'
If you just want to compare formulae (for example, in a sheet using NOW
):
git config --global diff.sheetjs.textconv "j -S"
NOTE: There are some known issues regarding global modules in Windows. The best
bet is to npm install j
in your git directory before diffing.
FAQs
CLI tool for working with spreadsheet files
The npm package j receives a total of 9,011 weekly downloads. As such, j popularity was classified as popular.
We found that j demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Cloudflare has launched a setup wizard allowing users to easily create and manage a security.txt file for vulnerability disclosure on their websites.
Security News
The Socket Research team breaks down a malicious npm package targeting the legitimate DOMPurify library. It uses obfuscated code to hide that it is exfiltrating browser and crypto wallet data.
Security News
ENISA’s 2024 report highlights the EU’s top cybersecurity threats, including rising DDoS attacks, ransomware, supply chain vulnerabilities, and weaponized AI.