How-to

Spreadsheet How-To Guides

Practical, copy-paste-friendly walkthroughs for the spreadsheet tasks that come up every week. Built around real workflows, not theory.

Comparing files

Diff two Excel files, two CSVs, two Google Sheets, JSON arrays — without converting first.

  • Compare two Excel files
  • Compare two CSV files
  • Compare two Google Sheets
  • Find differences between two spreadsheets

Converting formats

Move data between CSV, XLSX, JSON, XML, and TSV without losing types or breaking encoding.

  • Convert CSV to Excel
  • Convert Excel to CSV
  • Open CSV in Excel without formatting issues
  • Handle large CSV files

Cleaning data

Find duplicates, remove blank rows, split big files, fix encoding issues, and standardize columns.

  • Find duplicates in CSV
  • Find duplicates in Excel
  • Remove blank rows in Excel
  • Split large CSV files

Reconciliation & auditing

Reconcile bank statements, audit spreadsheet changes, track edits across versions of a model.

  • Reconcile bank statements
  • Audit spreadsheet changes
  • Track changes in Excel
  • Merge two CSV files

Working with JSON & XML

Diff structured data files, validate schemas, and convert in and out of tabular formats.

  • Compare JSON files
  • Validate CSV files
  • Diff CSV files on the command line

More guides coming

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