Office Performance Issues

How to Reduce Microsoft Office Storage Usage on Android

Khadija Khan Oct 10, 2026 870 views

Question details

The user needs to identify and stop the Microsoft Office app from consuming excessive storage space on their Android device.

How to Reduce Microsoft Office Storage Usage on Android

Product: Microsoft Office App
Device & OS: Android
Scenario: Managing device storage and troubleshooting bloated application data.
Observed behavior: The Microsoft Office app user data continuously grows to massive sizes (e.g., 8 GB) due to cached files and background synchronization, even when very few files are visible.

Before you start

Before clearing your app data, ensure that all your recently edited documents are fully synced to your cloud account to prevent any accidental loss of unsaved changes.

Solution 1Recommended

Clear App Cache and Review Storage Breakdown

Use your Android device's built-in settings to safely clear accumulated temporary files and review what is taking up space.

The Microsoft Office app frequently caches documents and thumbnails to improve loading speeds. Over time, these temporary files can accumulate into gigabytes of data. Clearing the cache is a safe way to free up space without losing your logged-in account or unsaved documents.

Open Android Settings

Navigate to your device's home screen or app drawer and tap the 'Settings' gear icon.

Access App Management

Scroll down and tap on 'Apps' or 'App Management' to view the list of all installed applications on your device.

Locate Microsoft Office

Find and tap on 'Office' (or Microsoft Office) in the app list.

Clear Cache

Tap on 'Storage' or 'Storage & cache'. Review the breakdown of the app size and user data, then tap the 'Clear Cache' button to remove unnecessary temporary files.

Clear App Cache and Review Storage Breakdown

Avoid Clearing Data Prematurely: Do not tap 'Clear Data' unless you are prepared to log in again and re-configure your app settings, as this will wipe all local app preferences.

Solution 2

Manage OneDrive Synchronization and Offline Files

Prevent the Office app from keeping large synchronized cloud files locally on your phone.

Free Microsoft Office alternative

Switch to WPS Office for a Lightweight Mobile Experience

If Microsoft Office continues to consume too much storage on your Android device, consider switching to WPS Office. It is a highly optimized, lightweight alternative that handles your document needs seamlessly without bloating your phone's memory.

1. Download the App: Visit the Google Play Store on your Android device, search for 'WPS Office', and install the application.
2. Open Your Files: Launch WPS Office and easily open your existing documents directly from local storage or your preferred cloud drive without forced background downloads.

Significantly smaller installation size, saving gigabytes of internal storage on Android devices.Fully compatible with Microsoft Office file formats, including Word, Excel, and PowerPoint.All-in-one suite to view, edit, and create documents without excessive background cloud synchronization.Built-in file management tools make it easy to control local storage and clear cache.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Microsoft Office take up so much storage on Android?

The application frequently caches downloaded documents, thumbnails, and syncs OneDrive files in the background to improve document load times. Over time, this hidden user data can easily accumulate into gigabytes of used space.

Will clearing the Microsoft Office app data delete my documents?

Clearing the 'Cache' only removes temporary files, leaving your documents completely intact. However, if you choose to clear 'Data', it will log you out, reset your app preferences, and delete locally saved offline files. Files synced to your OneDrive cloud will remain safe.

How can I stop files from automatically downloading to my phone?

You can manage this by opening the Office app settings and ensuring that large folders or files are not toggled to 'Keep offline'. Reviewing your standalone OneDrive app settings to limit automatic background offline syncing can also help reduce storage bloat.

Office App Problems