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Spreadsheet

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Python Programming Learning Circle
Python Programming Learning Circle
May 20, 2025 · Fundamentals

Basic Operations with openpyxl: Workbooks, Sheets, Cells and Advanced Features

This tutorial explains the core concepts of openpyxl—including workbooks, sheets, and cells—demonstrates how to create, open, read, write, style, merge, and manipulate Excel files with Python, and provides complete code examples for generating 2D and 3D charts.

DataProcessingExcelPython
0 likes · 11 min read
Basic Operations with openpyxl: Workbooks, Sheets, Cells and Advanced Features
Python Programming Learning Circle
Python Programming Learning Circle
Sep 15, 2023 · Fundamentals

Essential Excel Functions for Data Analysis: CONCATENATE, LEN, COUNTA, DAYS, NETWORKDAYS, SUMIFS, VLOOKUP, and More

This article introduces a comprehensive set of Excel functions—including CONCATENATE, LEN, COUNTA, DAYS, NETWORKDAYS, SUMIFS, AVERAGEIFS, VLOOKUP, FIND/SEARCH, IFERROR, COUNTIFS, LEFT/RIGHT, RANK, MINIFS, MAXIFS, and SUMPRODUCT—explaining their purpose, syntax, and practical examples for effective data analysis and reporting.

ExcelFormulasFunctions
0 likes · 10 min read
Essential Excel Functions for Data Analysis: CONCATENATE, LEN, COUNTA, DAYS, NETWORKDAYS, SUMIFS, VLOOKUP, and More
Python Programming Learning Circle
Python Programming Learning Circle
Sep 13, 2023 · Fundamentals

Using openpyxl to Manipulate Excel Files in Python

This tutorial demonstrates how to use the Python openpyxl library to create, open, edit, and save Excel workbooks, covering worksheets, cells, ranges, formulas, merging, iteration, and file handling for both small and large spreadsheets.

Data ProcessingExcelPython
0 likes · 6 min read
Using openpyxl to Manipulate Excel Files in Python
IT Services Circle
IT Services Circle
Mar 8, 2023 · Product Management

Excel’s Evolution: From Spreadsheet Origins to a Turing‑Complete Programming Language

This article traces the history of spreadsheet software—from the 1977 invention of VisiCalc, through Lotus 1‑2‑3’s dominance, to Microsoft’s strategic development of Excel, highlighting key innovations like LAMBDA that made Excel a Turing‑complete programming language and its lasting impact on computing.

ExcelSpreadsheetTuring Complete
0 likes · 9 min read
Excel’s Evolution: From Spreadsheet Origins to a Turing‑Complete Programming Language
政采云技术
政采云技术
Apr 27, 2021 · Frontend Development

Exploring Data Visualization with SpreadJS

This article examines the challenges of web‑based spreadsheet reporting, evaluates cloud‑document and control‑type solutions, and demonstrates how SpreadJS addresses concurrency, Excel compatibility, flexible layouts, formula calculation, and workflow integration through performance‑optimized rendering, a robust calculation engine, and rich styling capabilities.

Data VisualizationJavaScriptSpreadJS
0 likes · 20 min read
Exploring Data Visualization with SpreadJS