Hotel PMS vs Spreadsheets: When Excel Stops Working

Give the spreadsheet its due

A well-built booking sheet is fast, free, infinitely flexible, and understood by everyone who works there. Many properties under 20 rooms run one competently for years. Any argument for replacing it has to start by acknowledging that it is doing real work.

The five points where it breaks

1. 01Concurrency. Two people edit the sheet in the same hour and one version silently wins. This is how rooms get double-sold.
2. 02Room state. A spreadsheet records what is sold, not what is clean. Housekeeping ends up on a second, parallel system — usually a group chat.
3. 03Guest memory. Each row is a booking, not a guest. A returning guest is a new row, and everything you learned last time is gone.
4. 04Reporting. Occupancy for the month is a manual rebuild, so it gets done late or not at all.
5. 05Key-person risk. One person understands the sheet's conventions. When they are on leave, the property runs on their phone number.

The cost of a spreadsheet is not zero — it is paid in staff time, in the occasional double booking, and in the guest relationships that are never carried into a second stay.

What you actually gain

Migrating without losing a season

The migration itself is usually less work than people fear, but the sequence matters. Doing it in the wrong order during high season is how these projects acquire a bad reputation.

1. 01Clean the data first. Fix room type names, remove test rows, standardise date formats. Migrating a messy sheet produces a messy system.
2. 02Set up the property structure: rooms, room types, rates. This is the part that determines whether everything else fits.
3. 03Load forward bookings only. Historical bookings can be imported later or kept as an archive; they are not needed to operate.
4. 04Run in parallel for a defined period — two weeks, not six months — with an agreed switch-off date for the sheet.
5. 05Train on the real property, not the demo one. People learn the system they will actually use.
6. 06Switch the spreadsheet to read-only on the agreed date. A property still editing both has not migrated.

When to stay on the spreadsheet

If you run a small property, take most bookings yourself, and one person handles reception and housekeeping between them, a spreadsheet may genuinely still be the right tool. The honest threshold is not room count — it is the number of people who need the same answer at the same time. Once that number is three, the spreadsheet is already losing.