July 28, 2026
Import a CSV to Google Sheets Without Data Loss
Import a CSV to Google Sheets with File then Import, pick the right separator, and stop the conversion that eats leading zeros, long IDs and codes.
Read article →The Sigmera blog
Practical, no-fluff writing on cleaning messy spreadsheet and CRM data — and why it should never leave your browser.
July 27, 2026
How to Open CSV in Excel Without Breaking Data
Open a CSV in Excel without losing leading zeros, flipping IDs to scientific notation, or turning text into dates. The import route that keeps values intact.
Read article →July 22, 2026
How to Clean Data in Excel: Every Step
Clean data in Excel step by step: remove duplicates, trim spaces, split and combine columns, fix formats, then clean a CSV in the browser.
Read article →July 21, 2026
How to Remove Blank Rows in Excel
Remove blank rows in Excel with Go To Special, a filter, sorting, or Power Query — plus the Google Sheets method and a browser way to strip blanks from a CSV.
Read article →July 20, 2026
What Is a CSV File? Format, Uses, and Pitfalls
A CSV file is plain text holding a table, one row per line. Learn the RFC 4180 rules, how to open one safely, and where CSVs break.
Read article →July 19, 2026
How to combine two columns in Excel
Combine two columns in Excel with the ampersand, CONCAT, TEXTJOIN, or Flash Fill. Which method your version supports, and how to keep the result after export.
Read article →July 18, 2026
How to remove duplicates in Google Sheets
Remove duplicates in Google Sheets with the built-in tool, UNIQUE, or COUNTIF. What each method deletes, the whitespace trap, and when to work outside Sheets.
Read article →July 14, 2026
What is data cleaning? A practical guide
What is data cleaning? It is fixing duplicates, typos, and bad formatting in a dataset so it is usable. Learn the process and how to do it in your browser.
Read article →August 4, 2026
Proper Case in Excel: UPPER, LOWER, and PROPER
Change text case in Excel with UPPER, LOWER, and PROPER, see why PROPER mangles names like McLeod and IBM, and fix a whole CSV column without uploading it.
Read article →July 25, 2026
How to Find and Replace in Excel Without Errors
Find and Replace in Excel with Ctrl+H, wildcards, and the options that decide what changes — plus how to run the same swap on a CSV with no upload.
Read article →July 24, 2026
Flash Fill Excel: How to Use It (With Examples)
Learn how Flash Fill in Excel works, the Ctrl+E shortcut, the jobs it does best, why it stops working — plus a no-upload way to reshape a CSV column.
Read article →July 23, 2026
How to Remove Spaces in Excel (5 Reliable Ways)
Remove leading, trailing, extra, and non-breaking spaces in Excel with TRIM, CLEAN, and Find & Replace — plus a no-upload way to strip spaces from a CSV.
Read article →August 6, 2026
CSV vs Excel: Which Format to Use and When
CSV vs Excel compared: what each format stores, what breaks in conversion, and how to pick the right one for imports, analysis, and archiving.
Read article →July 26, 2026
How to Transpose in Excel: Rows to Columns
Transpose in Excel with Paste Special, the TRANSPOSE function, or Power Query — plus the Google Sheets method and how to flip a CSV export.
Read article →June 1, 2026
Why you should never upload your data just to clean it
The privacy and GDPR case for cleaning spreadsheets in your browser instead of on someone else's server.
Read article →June 1, 2026
What is E.164 phone number format?
A plain-English explanation of the international phone number standard and why CRMs and SMS tools require it.
Read article →June 1, 2026
How duplicate data quietly wrecks your CRM
Why duplicate rows inflate your numbers and break automations — and how to strip them out before import.
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