Excel
Freezing Panes Filters and Column Widths From Code
Freeze the header row, add filter buttons and set column widths from Python with openpyxl and XlsxWriter, including an auto-width helper and print settings.
7 min read
Topic
Excel
Where the business keeps its data. Reading workbooks, taming dates and formulas, and moving sheets to and from a database.
Excel
Adding Formulas and Number Formats From Python Code
Write Excel formulas and number formats from Python with openpyxl and XlsxWriter: English syntax, cached values, table references, percent and date codes.
7 min read
Excel
Building a Multi Sheet Excel Report From SQL Queries
Build one Excel workbook from several SQL queries: a summary sheet, a sheet per region, formulas that point across sheets and an index with working links.
7 min read
Excel
Exporting MySQL Data to Excel With a Python Script
Export a MySQL query to a clean XLSX with PyMySQL and pandas, handling DECIMAL, zero dates, tinyint flags and utf8mb4, and compare it with Workbench.
7 min read
Excel
Exporting SQL Server Query Output to an Excel File
Export SQL Server query results to XLSX with pyodbc and pandas, and see what SSMS, bcp and the Import and Export Wizard give you instead.
7 min read
Excel
Writing a DataFrame to Excel With Formatting in pandas
Format a pandas DataFrame in Excel with XlsxWriter: header style, number and date formats, auto-fit widths, a table with banding and conditional formatting.
7 min read
CSV
How to Open a UTF8 CSV in Excel Without Garbled Text
Excel on Windows often shows UTF-8 accents as à symbols. Add a BOM when you write the file, or import it with the right encoding, and check the bytes first.
7 min read
Excel
Exporting a Query to Excel From PostgreSQL With Python
Run a PostgreSQL query from Python and write an Excel file with correct types, converting timestamptz, numeric and ids so the workbook opens cleanly.
7 min read
ExcelGuide
Sending Database Results to Excel Properly Every Time
Export SQL results to Excel that open cleanly: keep types and dates, carry formatting, use several sheets, resist formula injection and run on a schedule.
18 min read
Excel
Validating Row Counts After an Excel Import Step by Step
Prove an Excel import lost nothing by counting rows at the source, the stage and the target, adding control totals, and reconciling rejects in one query.
8 min read
CSV
The UTF8 BOM in CSV Files and When It Helps or Hurts
Three invisible bytes at the start of a CSV can fix Excel or break a header match. See which readers strip a BOM and how to add or remove one.
7 min read
Excel
Staging Excel Data in a Table Before Cleaning It Up
Design a staging table for Excel loads with text columns and provenance, load it fast, profile it with SQL and keep or drop it on a retention rule.
8 min read
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