# Document Tools

Document tools handle office files other than PDFs: Word and OpenDocument text files, Excel spreadsheets, PowerPoint presentations and EPUB eBooks. Typical tasks are converting between formats, viewing a file without the program that made it, merging or splitting files and cleaning up content. Any task that creates or reads a PDF belongs to the PDF tools.

## Subcategories

- [Word](https://techolm.com/document-tools/word) (0 tools)
- [Excel & Spreadsheets](https://techolm.com/document-tools/excel-spreadsheets) (0 tools)
- [PowerPoint & Slides](https://techolm.com/document-tools/powerpoint-slides) (0 tools)
- [eBooks](https://techolm.com/document-tools/ebooks) (0 tools)

## Tools

- DOC to DOCX (Coming soon): Convert old Word 97-2003 DOC files into the current DOCX format.
- Excel to CSV (Coming soon): Export a sheet from an Excel or OpenDocument workbook as a CSV file with the delimiter you choose.
- Compress PowerPoint (Coming soon): Shrink large PowerPoint files by optimizing the images and media inside the slides.
- EPUB Reader (Coming soon): Open and read EPUB eBooks in a web page, with a table of contents and adjustable text size.

## Frequently asked questions

### What is the difference between DOC and DOCX?

DOC is the binary format of Word 97 to 2003. DOCX, the default since Word 2007, is Office Open XML: a ZIP package of XML files standardized as ECMA-376 and ISO/IEC 29500. DOCX files are usually smaller, and current versions of Word and LibreOffice open both formats.

### What is the difference between XLSX and CSV?

An XLSX workbook can hold several sheets with formulas, formatting, charts and data types. A CSV file stores only the values of a single sheet as plain text, so saving a workbook as CSV drops everything else. CSV is the usual choice for moving data between apps and databases.

### Can I read an EPUB without an e-reader?

Yes. EPUB is an open eBook standard maintained by the W3C, built from web pages, styles and images packed into a ZIP file, so reading apps exist for browsers, phones, tablets and computers as well as dedicated e-reader devices.