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Two Things Every CSV Export of Untrusted Text Needs Before Someone Double-Clicks It in Excel

Two Things Every CSV Export of Untrusted Text Needs Before Someone Double-Clicks It in Excel

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4 min read
Batch rename files from an Excel or CSV list

Batch rename files from an Excel or CSV list

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7 min read
Testing a CSV Export Without Guessing Its Meaning

Testing a CSV Export Without Guessing Its Meaning

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5 min read
Proving a bank statement CSV is complete: tie the running balance to the printed totals

Proving a bank statement CSV is complete: tie the running balance to the printed totals

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5 min read
Postal codes are strings: test a CSV/JSON fixture round trip in Python

Postal codes are strings: test a CSV/JSON fixture round trip in Python

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5 min read
CSV to JSON: the three cases that break every naive parser

CSV to JSON: the three cases that break every naive parser

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3 min read
Duplicate CSV Headers in the Browser: Three Naming Rules and Where They Disagree

Duplicate CSV Headers in the Browser: Three Naming Rules and Where They Disagree

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5 min read
How to bulk create custom properties in HubSpot from a CSV or spreadsheet

How to bulk create custom properties in HubSpot from a CSV or spreadsheet

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3 min read
A card issuer publishes four country lists, and they don't match. So I put them in a CSV.

A card issuer publishes four country lists, and they don't match. So I put them in a CSV.

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3 min read
One bank CSV, three importers: the format QuickBooks Online, Xero and Wave will all accept

One bank CSV, three importers: the format QuickBooks Online, Xero and Wave will all accept

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4 min read
Parse a CSV in the Browser: Column Type Badges, Parsing Issues and the Bytes You Get

Parse a CSV in the Browser: Column Type Badges, Parsing Issues and the Bytes You Get

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5 min read
Find duplicate rows in a CSV by key column with Python (no pandas)

Find duplicate rows in a CSV by key column with Python (no pandas)

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2 min read
Rename or Reorder CSV Columns in the Browser: What the Export Actually Contains

Rename or Reorder CSV Columns in the Browser: What the Export Actually Contains

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4 min read
Split a CSV in the Browser: Row Counts, Column Values and the Bytes You Get

Split a CSV in the Browser: Row Counts, Column Values and the Bytes You Get

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3 min read
Merge Two CSVs in the Browser: Rows Align by Header Name, Not Column Order

Merge Two CSVs in the Browser: Rows Align by Header Name, Not Column Order

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4 min read
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