California Department of Transportation

DRISI-HQ: File Help

Information About Different File Formats

(and how to download software to read them).


State makes no warranty of any kind, express or implied, with respect to the software products which are the subject of this Page. User assumes all risk and liability for loss, damage, claims or expense resulting from use, possession or resale of any software products furnished by any companies linked to on this website.

HTML File Format

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HTML (.htm or .html) is the standard file format (markup language) for web pages. A standard web browser will read and display the page. HTML is the best file choice for quickly viewing a file online. HTML generally loads more quickly than PDF and WORD, and no additional software is needed. HTML files are not usually the best choice to print content being viewed on the screen; however, you may copy and paste from most HTML pages, and you may do a screen copy of any full page (shift/Print Screen/paste). For ease of printing, look for a PDF or WORD version.

Microsoft WORD File Format

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Microsoft Word Document format (.doc) is the file format for many documents and reports on our site written in Microsoft Word. View, print and copy Word documents, even if you don't have Word installed with the free Word Viewer from Microsoft. This download is a replacement for Word Viewer 2003 and all previous Word Viewer versions. Microsoft Office Word Viewer Download.

Microsoft Excel Format

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Excel Spreadsheet format (.xls, .xlsx .xlt, or .xltx) With Excel Viewer, you can open, view, and print Excel workbooks, even if you don't have Excel installed. You can also copy data from Excel Viewer to another program. However, you cannot edit data, save a workbook, or create a new workbook. This download is a replacement for Excel Viewer 97 and all previous Excel Viewer versions. To download the free viewer, click here: Get Excel Viewer.

Microsoft PowerPoint Format

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PowerPoint is a presentation software that we use on our websites to post complete slide shows. Microsoft Office PowerPoint 2010 Viewer lets you view full-featured presentations created in PowerPoint 97 and later versions, without owning the software. The PowerPoint 2010 Viewer also supports opening password-protected Microsoft PowerPoint presentations. You can view and print presentations, but you will need a complete PowerPoint version of the software to do any editing. To download the free viewer, click on: Get PowerPoint Veiwer for 1997 Version and Later.

Adobe Acrobat (PDF) File Format

Get Acrobat ReaderClick to expand and collapse panel
The PDF file format is a good choice for printing reports and other documents, viewing graphically intensive documents, and keeping documents in their original format. View and interact with PDF files that contain a wide variety of content types, including drawings, email messages, spreadsheets, videos, and other multimedia elements. PDF is a very common format for viewing documents on the Internet, so installing the Acrobat Reader will be useful on other websites as well. To download the Acrobat Reader or to find out more about the product, Click here to get Adobe Reader.

Adobe Flash Format (fla., .swf)

Microsoft Word LogoClick to expand and collapse panel
Adobe® Flash® Player is a cross-platform browser-based application runtime that delivers uncompromised viewing of expressive applications, content, and videos across screens and browsers. Flash Player is optimized for high performance on mobile screens and designed to take advantage of native device capabilities, enabling richer and more immersive user experiences. To get Flash Player, click on: Get Flash Player.

Zip File Formats

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Files archived in a Zip file are compressed to save space. We use this format throughout our website for very large files so they may be downloaded more quickly. Many files on the Net are in a compressed format. Typically, these files will have a .zip extension. Zipped files must be unzipped (or decompressed) before viewing. Besides the popular ZIP format, there are many other compression formats, such as Stuffit (.sit) files (for Mac users) and uuencoded (.uue), BinHex (.hqx), ARC (.arc), Arj (.arj), and gzip (.gz) formats, etc. One of the most popular and well-known compression utilities is WinZip. The link we are providing is to get the trial version. You are expected to pay for it if you use it and like it. To get WinZip, click on: Get Winzip .
The following site has several freeware zip programs that are very good programs. To see the free software, click on: Free Zip Software.

Other File Formats (.gif, .jpg, .jpeg, .tiff)

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OTHER FILE FORMATS: TIFF, GIF, JPG (or JPEG), are all graphic file formats (or pictures). When one of these formats is downloaded, you will have a picture that is not editable.
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Updated February 11, 2014