.xlsx · Excel workbook (XLSX)
Open .XLSX files in your browser
Open XLSX workbooks as an editable spreadsheet grid, with embedded charts shown as bar graphs when chart caches are present.
How it works
- Open Filelathe and drop your file (avoid macOS Finder Recents — use the real folder).
- A dedicated tool window opens for this format.
- Use the on-page controls to view or edit.
Filelathe parses the workbook locally, opens the first sheet in the Spreadsheet editor, and surfaces xl/charts data as BarGraph widgets when DrawingML chart caches are available.
Privacy
File bytes are read in your browser for viewing and playback. Unlike upload-to-convert sites, Filelathe is built around in-tab tools. API calls may use filename, type, and small samples to choose or invent a UI.