This article introduces popular file extensions and how to open and use files associated with these extensions. These extensions include but are not limited to .doc, .pdf, .ppt, .xlsx etc. We delve into these and more, and the article is segmented into separate chapters based on each extension.

.DOC and .DOCX Files

The .doc and .docx extensions are primarily associated with Microsoft Word documents. Microsoft Word is a word processing application which is a part of Microsoft's Office suite. Microsoft Word is widely used world over for creating, viewing, and editing documents.

.PDF Files

The .pdf file extension stands for Portable Document Format. This format is used to present and share documents reliably, independent of software, hardware, or operating system. Adobe invented PDF. To view a .pdf file, you can use Adobe Acrobat Reader, which is free to download and use.

.PPT and .PPTX Files

The extensions .ppt and .pptx are associated with Microsoft PowerPoint, a presentation software. This program is widely used in businesses and classrooms and is an effective tool when it comes to creating slide show presentations. You can get Microsoft PowerPoint from Microsoft's official site.

.XLSX Files

The .xlsx extension represents an Excel Spreadsheet created by Microsoft Excel. Excel is used to format and organize numerical data. Spreadsheets can be created and edited in Microsoft Excel, which is part of Microsoft's Office Suite.

90 File Important Information

From text files to images, from spread sheets to audiovisual data, file extensions signify the type of data stored in the file and the applications needed to utilize this data. Armed with the info in this article, you should now have a basic understanding of the various file types and extensions, as well as how to open and use these files.