Spark Grid support
Last updated: October 15, 2026
Need help with Spark Grid? Email Sam — every message gets read.
Spark Grid 1.1 is out on the Mac App Store. Spreadsheets. No account.
Big workbooks open faster. The sheet you’re editing stays quick. No account, and your files stay on your computer.
What to include in a bug report
- Your macOS version (Apple menu → About This Mac)
- Spark Grid version (Spark Grid → About Spark Grid)
- What you were doing, and what went wrong
- A sample workbook if the issue is file-specific (remove anything private first)
Opening .xlsx and CSV
Spark Grid opens and saves .xlsx and CSV from Open, or when you drop a file on the icon.
Pressing Space in Finder does not open Spark Grid for those files.
Pivot tables are not in this version. Bar, line, and area charts are on the sheet.
If a file breaks, email a sample with private data removed.
What 1.3 includes.
Formulas in 1.3
91 functions evaluate, from SUM and IF to XLOOKUP, SUMIFS, MAXIFS, and EOMONTH. What works lists them all.
Criteria that take wildcards can use them.
Anything else shows #NAME?.
Coming next
In 1.3, the current Mac App Store release: charts from your files that you can move, resize, and edit, Find Duplicates, tables, sheet tab colors, and shortcuts you can change in Settings. See the changelog.
Privacy
The app does not collect analytics and does not use the network. See the privacy policy.