GitHub

ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with ...

The public API is still not stable and it is a very good idea to read release notes and migration guide before each update. Performance matters mostly for large files. For small files, few ms here or ...

Easily Turn Excel Tables into PowerPoint Slides with the Claude AI

This guide covers automating PowerPoint decks from Excel data with the Claude AI add-in, plus branding controls like fonts ...

Build an Excel Dashboard That Pulls CSV Data Without Opening Files

Learn how Excel IMPORTCSV refreshes linked CSV data, handles locale formats, and switches to IMPORTTEXT for semicolon ...
WinBuzzer

Anthropic Claude Links Excel and PowerPoint With Shared Context, Reusable Skills

Anthropic has launched shared context for Claude's Excel and PowerPoint add-ins, enabling cross-app workflows and reusable one-click Skills for enterprise teams.
IEEE

Understanding the Security Risks of Websites Using Cloud Storage for Direct User File Uploads

Abstract: With the rising demand for website data storage, leveraging cloud storage services for vast user file storage has become prevalent. Nowadays, a new file upload scenario has been introduced, ...
GitHub

PHP library to make basic but fast read & write operations on existing Excel workbooks.

It handles XLSX/XLSM documents (Microsoft Excel 2007+, Office Open XML Workbook) using fast and simple low-level ZIP & XML manipulations, without requiring any library dependency, while minimising ...