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Activation Problems

How to Open Excel Files During a Microsoft 365 Trial

Chanuka GeekiyanageChanuka Geekiyanage Oct 1, 2026 869 views

Question details

The user is unable to open or edit Excel spreadsheets despite recently starting a Microsoft 365 trial, likely due to account syncing failures or damaged software installations.

How to Open Excel Files During a Microsoft 365 Trial
Product
Microsoft Excel
Device & OS
not provided
Scenario
Attempting to access and edit local spreadsheet files after initiating a free trial for Microsoft 365.
Observed behavior
Excel files fail to open, or the application prompts for activation because it does not recognize the newly started trial subscription.
Before you start

Ensure you have a stable internet connection and the exact email address and password for the Microsoft account you used to initiate the Microsoft 365 trial.

Solution 1Recommended

Verify Your Trial Subscription and Sign-In Account

Ensure your Microsoft 365 trial is active on the server and that your installed Excel application is logged into the correct associated account.

Starting a trial online does not automatically log your desktop applications into the new subscription. You must ensure the software and the account are synced properly.

1
Access Microsoft account services

Navigate to https://account.microsoft.com/services in your web browser and log in using your Microsoft account credentials.

2
Confirm trial status

Check the 'Subscriptions' section to confirm that your Microsoft 365 trial is listed and currently active.

3
Check Excel account settings

Open the Microsoft Excel application, click on 'File' in the top-left corner of the ribbon, and select 'Account' from the bottom-left sidebar.

4
Switch accounts if necessary

Verify the email address listed under 'User Information'. If it does not match the account you used for the trial, click 'Sign out' and then sign back in with the correct email.

Verify Your Trial Subscription and Sign-In Account
Check Other Apps: Try opening Microsoft Word or PowerPoint to see if the issue is isolated to Excel or affects the entire Office suite.
Free Microsoft Office alternative

Open Your Excel Files Instantly with WPS Office

Skip the trial activation troubleshooting and access your data immediately. WPS Office is a free, lightweight office suite that fully supports Microsoft Excel files. You can view, edit, and create spreadsheets right now without needing a subscription or trial account.

  1. 1. Install the software: Download and install the free version of WPS Office from the official website.
  2. 2. Open WPS Spreadsheets: Launch the application and select 'Spreadsheets' from the main workspace.
  3. 3. Open your file: Drag and drop your Excel file directly into the window, or go to Menu > Open to locate and edit your spreadsheet immediately.
100% compatible with Microsoft Excel (.xls, .xlsx, .csv) formats.Completely free to use for viewing and editing spreadsheets.Lightweight installation that takes up minimal disk space and launches instantly.Familiar user interface requires no learning curve for Microsoft Office users.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Excel say 'Unlicensed Product' during my free trial?

This usually happens if Excel is logged into a different Microsoft account than the one used to start the trial, or if the software hasn't refreshed its activation status. Signing out and signing back in with the correct account often resolves this.

Do I need to uninstall my old version of Office before using the Microsoft 365 trial?

Yes, if you have an older or corrupted version of Office installed, it can conflict with the Microsoft 365 trial files and prevent apps from opening. It is highly recommended to uninstall older versions before installing the trial.

Can I still open my Excel files if my Microsoft 365 trial expires?

Once the trial expires, Microsoft Office applications enter a reduced functionality mode. You can still open, view, and print your Excel files, but you will not be able to edit them or save changes unless you renew the subscription or switch to a free alternative like WPS Office.