Choose for the workbook, not the feature list
A free spreadsheet is useful only if it handles the work you actually do. A household budget, a shared volunteer rota, and a finance model with macros have very different requirements. Start by identifying your hardest workbook rather than choosing whichever application has the longest list of functions.
This guide focuses on two practical routes: Google Sheets for browser-based collaboration and LibreOffice Calc for desktop work. Neither should be treated as a guaranteed drop-in replacement for every Excel workflow. Free access also does not mean every advertised cloud or AI feature is included without payment.
Define your nonnegotiables
Write down who edits the file, where they work, and what must survive a conversion. Include formulas, charts, external connections, validation lists, printing, and accessibility. If your accountant requires a particular Excel template, include that requirement before considering alternatives.
For example, a community garden might need five people to update expenses from phones. A sole trader might instead need offline access and reliable printing of a monthly expense report. The first situation points toward a shared online workbook; the second makes a desktop application worth testing.
Use a short acceptance checklist:
- Everyone can open the file on their normal device.
- Required calculations reproduce independently checked totals.
- Dates, currencies, and decimal separators display correctly.
- Permissions prevent accidental public exposure.
- Exported files remain usable by the intended recipient.
Compare two starting options
Google describes Sheets as an online collaborative spreadsheet; its product page also promotes capabilities that may depend on a subscription. LibreOffice documents Calc's spreadsheet functions, analysis tools, and Excel-format support. These are product descriptions, not evidence that your particular workbook will convert perfectly. Official references: 1 and 2.
| Requirement | Google Sheets route | LibreOffice Calc route |
|---|---|---|
| Main working environment | Browser and account-based sharing | Installed desktop application |
| Good initial use case | Shared trackers and straightforward team sheets | Offline budgets and local analysis |
| Main evaluation question | Are sharing and account controls suitable? | Does the imported workbook retain its behavior? |
| Cost boundary to check | Paid Workspace or AI capabilities | Optional services, support, and deployment effort |
| Migration risk | Excel-specific behavior and integrations | Excel-specific behavior and integrations |
Do not choose solely on whether an application opens an XLSX file. Opening, editing, recalculating, exporting, and reopening are separate tests.
Build a representative test workbook
Make a copy of your real file and remove personal data. Keep the difficult structures: a lookup, a conditional formula, a date calculation, a chart, and a print area. If macros or external data connections are essential, test those explicitly before moving anything important.
Create a small control example. Put quantities 3, 5, and 2 beside unit costs 12, 4, and 7. The line totals should be 36, 20, and 14, giving a grand total of 70. Calculate that independently. A plausible-looking total is not enough when imports change ranges or data types.
Next, test a date such as 2025-03-08 and a value such as 1,250.50. Regional settings can change how these are interpreted. Store identifiers such as postal codes as text when leading zeroes matter. Never assume a numeric-looking identifier is a number you should calculate with.
Run a controlled migration
1. Preserve the original
Keep the original workbook untouched and date the trial copy. Record the application used to create it and any important settings. A cloud version history can help with edits, but retain an independent backup when the workbook matters.
2. Import and inspect
Open the copy in the candidate application. Review warnings rather than dismissing them. Check every sheet, hidden rows, named ranges, formulas, dropdowns, charts, and print previews. Search for error values and compare key outputs against your control totals.
3. Perform an ordinary working day
Add rows, sort a table, filter records, change an input, and share with one intended collaborator. Watch for formulas that stop expanding or references that break after sorting. Test from the device that will actually be used, including a phone if necessary.
4. Test the return journey
Export to the format your recipient needs and reopen that export in the recipient's application when possible. Ask them to confirm layout and calculations. A successful import does not establish a successful round trip.
Make collaboration deliberate
For a shared expense tracker, separate input columns from calculated columns. Give clear headings such as “Purchase date,” “Category,” and “Amount.” Add a short instructions sheet explaining the date format, who approves entries, and where receipts belong.
Share with named people where feasible instead of creating a public editing link. Grant the least access necessary: someone checking totals may need viewing, not editing. Remove access when a volunteer or contractor leaves. Avoid putting sensitive identification numbers in a casually shared workbook.
For local files, agree who owns the master copy. Filenames such as “final-new-latest” are not version control. A dated handoff and one responsible editor can prevent conflicting edits when real-time collaboration is unavailable or unsuitable.
Know when a spreadsheet is the wrong replacement
A spreadsheet is not automatically a secure database, accounting system, or audit trail. If multiple staff need granular permissions, regulated records, approval histories, or reliable transaction processing, evaluate software built for that purpose. A zero subscription price does not compensate for a process that loses essential controls.
Likewise, a workbook dependent on specialized Excel automation may justify keeping Excel for that task while moving simpler work elsewhere. You do not have to replace every spreadsheet at once. A mixed workflow can be safer than a rushed all-or-nothing migration.
Decide after a short pilot
Score each candidate on correctness, ease of use, collaboration, portability, and administration. Treat correctness as a pass-or-fail requirement, not a category that attractive design can outweigh. Record unresolved issues and choose an owner for each fix.
Start with one low-risk workbook, retain the original, and review after a normal reporting cycle. If the pilot passes, document the setup so another person can maintain it. Explore the Excel alternatives directory for additional candidates and the free tools category for related resources. The best free replacement is the one whose limitations you have tested and can accept.