XLSX Editor by Loam

XLSX Editor by Loam is a local workbook editor for .xlsx files. Open a workbook, navigate between worksheets, edit typed cell values and formulas, apply common formatting and save supported changes locally without creating an account.

Use a familiar ribbon, formula bar, worksheet tabs and sparse worksheet view. Supported edits are written into the original XLSX package. Cell entry recalculates supported formulas automatically. Imported formula caches are preserved until a cell edit. Calculation and formatting coverage are partial. Unsupported edits and advanced Excel features may not behave as they do in Microsoft Excel. Keep a backup and check the saved workbook before relying on it.

Workbook processing takes place on your device. Selected workbook contents and file names are not uploaded. Production builds send bounded app-start analytics to PostHog and error/lifecycle diagnostics to Sentry. Analytics use the application version, a random app-scoped installation identifier stored locally and a fresh launch identifier; they do not create a person profile. Routine analytics and diagnostics exclude workbook names, sheet names, cell values and formula contents. Network requests expose ordinary network information, and PostHog may retain IP addresses and derive approximate location. The app does not request precise device location. See https://workbook.tools/privacy for the privacy disclosure and https://workbook.tools/support for help.

Snap permissions control file access. Ordinary non-hidden files you own in your home directory are accessible through the home permission. For external drives under /media, /run/media or /mnt, connect the optional interface with: sudo snap connect xlsx-editor:removable-media. If a selected file cannot be saved, keep your edits open and use Save As in an accessible home folder.

This app is independently developed by Shipit Software Limited and is not affiliated with or endorsed by Microsoft. Microsoft Excel is a trademark of Microsoft Corporation.