Elysiate blog
Practical guides for privacy-first developer tools, SEO and content operations, data and file workflows, cloud and API security, AI engineering, and sustainable freelance work. Everything here supports the same philosophy as our browser-based utilities: your data stays on your device until you choose otherwise.
For tabular data, the CSV tools hub covers validation and conversion in the browser, and the CSV topic index lists every CSV-tagged guide in one place.
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- VLOOKUP Not Working How To Fix It
A practical guide to fixing VLOOKUP problems in Excel, including missing matches, incorrect results, #N/A errors, range issues, formatting mismatches, and step-by-step troubleshooting patterns for real spreadsheet work.
- VLOOKUP In Google Sheets
A practical guide to VLOOKUP in Google Sheets covering syntax, exact matches, common business examples, error handling, limitations, and how to use VLOOKUP for shared spreadsheet analysis.
- Unique Function In Excel
A practical guide to the UNIQUE function in Excel covering syntax, distinct values, unique rows, dynamic lists, reporting workflows, duplicate handling, and real spreadsheet use cases.
- TEXTJOIN Function Guide
A practical guide to the TEXTJOIN function in Excel covering syntax, delimiters, ignoring blanks, combining names and fields, reporting examples, common mistakes, and useful text-building workflows.
- Templates Dashboards Pillar Page
Use this pillar page to navigate templates and dashboards across Excel, Google Sheets, Power Query, and Power BI, compare common workflow patterns, and choose the right reporting setup for your team.
- SUMIF vs SUMIFS
A practical guide to SUMIF vs SUMIFS covering one-condition and multi-condition sums, formula syntax, common mistakes, business examples, and how to choose the right function for reporting work.
- Sum vs SUMX In DAX
A practical guide to SUM vs SUMX in DAX, covering aggregation, iterators, row-by-row evaluation, performance tradeoffs, business-reporting examples, and common Power BI mistakes.
- Star Schema For Power BI
A practical guide to star schema in Power BI covering fact tables, dimension tables, relationships, filtering, model design, performance benefits, and common mistakes to avoid.
- SQL Window Functions Explained
A practical guide to SQL window functions with clear examples for ranking, running totals, per-group comparisons, moving averages, LAG, LEAD, and real analytical query patterns.
- SQL WHERE Clause Guide
A practical guide to the SQL WHERE clause with clear examples for filtering rows, combining conditions, handling NULL values, matching patterns, and writing more accurate SQL queries.