The sheet the user is currently viewing (or last viewed before closing Excel) is called the active sheet.Įach sheet has columns (addressed by letters starting at A) and rows (addressed by numbers starting at 1). Each workbook can contain multiple sheets (also called worksheets). A single workbook is saved in a file with the. Excel Documentsįirst, let’s go over some basic definitions: an Excel spreadsheet document is called a workbook. The screenshots in this chapter, however, are all from Excel 2010 on Windows 10. Even if you already have Excel installed on your computer, you may find these programs easier to use. You can download the software from and, respectively. xlsx file format for spreadsheets, which means the openpyxl module can work on spreadsheets from these applications as well. Both LibreOffice Calc and OpenOffice Calc work with Excel’s. These are exactly the sort of boring, mindless spreadsheet tasks that Python can do for you.Īlthough Excel is proprietary software from Microsoft, there are free alternatives that run on Windows, macOS, and Linux. Or you might have to look through hundreds of spreadsheets of department budgets, searching for any that are in the red. Or you might have to go through thousands of rows and pick out just a handful of them to make small edits based on some criteria. For example, you might have the boring task of copying certain data from one spreadsheet and pasting it into another one.
The openpyxl module allows your Python programs to read and modify Excel spreadsheet files. In the next two chapters, we’ll integrate Python into two popular spreadsheet applications: Microsoft Excel and Google Sheets.Įxcel is a popular and powerful spreadsheet application for Windows. Although we don’t often think of spreadsheets as programming tools, almost everyone uses them to organize information into two-dimensional data structures, perform calculations with formulas, and produce output as charts.
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