Skip to content
Hollow Workbooks
Spreadsheets that recalculate as you edit.
A spreadsheet grid with a live formula bar, and a conflict indicator that warns you when the workbook was edited elsewhere, such as in another tab or on another device.
- Live =SUM formulas
- Named ranges
- Edited-elsewhere warning
What it does
What you can do in Workbooks
Formulas you can check
Live evaluation, named ranges and data validation make a workbook easier to follow as the number of inputs grows.
Charts from a range
Insert a bar, line or pie chart from a cell range, and use conditional formatting to highlight patterns in the cells themselves.
Exchange spreadsheets
Import XLSX, CSV, TSV and ODS files, and export to XLSX or CSV when you need to share the work.
Works with
Beside Workbooks in your workspace
Apps from the same part of the suite. Each is its own app, with the same account and the same shell.
Explore the rest of Hollow
TasksSpaces, Folders and lists, schedules and an intake queue for the work you track.CalendarDay, week, month and agenda views with a today panel.BudgetsMonthly bills, paid marks and period totals, shared with the people who pay them.ContactsA private or shared address book with groups.MapsA map with saved places and lists, and your location kept private.NotesNotes with wiki links, backlinks, freeform canvases and Markdown import and export.SlidesPresentations with templates, a presenter view and export.DiagramsDiagrams you can draw or write as code, with YAML and JSON export.FilesFolders, inline previews, resumable uploads, trash and restore.MailPreviewConnect a mailbox, read by conversation, label, filter and compose.YapSpaces, channels, threads, reactions and mentions, plus DMs between friends.StudioChat and Code with a live Preview panel, Spaces and Knowledge.CascadeAutomations with connectors, branches, approvals, schedules and webhooks.LumenUptime checks, logs, metrics and alerts for your endpoints and services.ReposPrivate Git repositories with a code browser, diffs, branches and pull requests.HubLaunch any app, keep widgets nearby and search your workspace and the web.
Start with Workbooks.
Request access and open Hollow Workbooks alongside the rest of your Hollow workspace.
Hollow is invite only for now. Every account starts free on Seed.