# How to open and edit DOCX, XLSX and PPTX files on Android

A practical guide to opening, editing, saving and sharing DOCX documents, XLSX spreadsheets and PPTX presentations on an Android device.

## Quick answer
A practical guide to opening, editing, saving and sharing DOCX documents, XLSX spreadsheets and PPTX presentations on an Android device.

Office files often arrive when you are nowhere near a desktop computer. On Android, the key is using an editor that understands the real DOCX, XLSX or PPTX structure rather than flattening the file into plain text.

## 1. Identify the file format
DOCX is used for word-processing documents, XLSX for spreadsheets and PPTX for presentations. Keeping the original extension matters because each format stores its content and layout differently.

## 2. Open the file in a format-aware editor
Use an app that has a dedicated editor for the format you are opening. A document editor should preserve rich text, a spreadsheet editor should preserve sheets, cells and formulas, and a presentation editor should preserve slides and objects.

## 3. Make the change and check the result
After editing, review the part you changed before saving. In a spreadsheet, check calculated cells; in a presentation, check slide layout; in a document, check paragraph and list formatting.

## 4. Save a copy when the source is read-only
Files received from another app or storage provider may not always be writable in place. Save As gives you a new local copy without risking the original.

## 5. Share or move the finished file
Once the file is saved, use Android sharing or your normal storage workflow to send the edited version where it needs to go.

## Common mistakes to avoid
- Renaming a file extension instead of actually converting the document
- Using a plain-text editor for a structured Office file
- Saving over the only copy before checking the edited result
- Assuming every advanced desktop feature will round-trip perfectly on mobile

## Common questions
### Can Android edit DOCX, XLSX and PPTX files?
Yes, provided the app has format-aware editors for those file types rather than treating them as generic files.

### Do I need an account to edit Office files on Android?
Not necessarily. Local-first editors can open and save files on the device without requiring an account or forced cloud storage.

### What should I do if the original file is read-only?
Use Save As to create a writable copy, make sure the new file opens correctly, and keep the original until you are satisfied with the edit.

## Related Trefnio product
OfficeForge
- Product page: https://trefnio.co.uk/apps/officeforge/
- Status: In development; submitted to Google Play for review before testing.