01.XLSX / .CSV / .PARQUET · Excel Workbook & Columnar Data
FREE OFFLINE .XLSX / .CSV / .PARQUET STUDIO · GRIDCRAFT v0.10.0
Windows 10/11 (ArteCraft.exe 7.4 MB) · Browser WebAssembly · 71 MB Native Rust
Open .XLSX, Huge .CSV & .Parquet Files at 120 FPS Without Excel.
Excel freezes on multi-hundred-MB CSV logs, silently corrupts gene names/IDs into dates, and requires a paid Microsoft 365 license.
02How to Open & Edit .XLSX / .CSV / .PARQUET
Install GridCraft (20 MB native Rust binary)
Runs in seconds on Windows 10/11 via ArteCraft.exe or directly in Browser WebAssembly.
Open .XLSX models, 500 MB .CSV exports, or .Parquet files
Multi-threaded Rust parser loads millions of cells in under a second.
Build pivot tables, charts & export clean .XLSX
Full formula calculation with zero telemetry.
Format Compatibility — .XLSX / .CSV / .PARQUET
- ✓400+ Excel-compatible formulas (XLOOKUP, INDEX/MATCH, SUMIFS, IRR, dynamic arrays)
- ✓GPU-virtualized grid scrolls 1,000,000+ rows at 120 FPS without UI lockups
- ✓Native .XLSX, .CSV, .TSV, and Apache .Parquet inspection in one binary
- ✓Deterministic type control — never mangles leading zeros or ISO strings unless asked
03Frequently Asked Questions
Does GridCraft support XLOOKUP and pivot tables from Excel .XLSX files?
Yes, over 400 core financial, statistical, and lookup functions plus interactive pivot summaries work out of the box.
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