The .xls filename extension is a native binary file format associated with the closed source spreadsheet application Microsoft Office Excel. First introduced in 1987 with the release of Excel 2.x, the file format acts as the container for storing spreadsheet data such as work sheets, charts, and macros. Prior to Microsoft Office Excel 2007, the xls binary format was the default standard for the Microsoft Office Excel until the later adoption of the Open Document standard .xlsx. Documents to be saved in the .xls format are saved as Excel 97, 2003 documents.
The hypertext markup language, commonly referred to as HTML is at the backbone of the internet and World Wide Web. It is the standard markup language used in the creation of webpages and was released in 1993 at the advent of the internet. The format defines the structure and layout of a webpage through markup tags such as header tags and image tags from which a browser can interpret multimedia information for on screen presentation. To view files and webpages saved with the .html filename extension, one needs a compatible web browser that implements the HTML specification. Because the format is open source, several browsers which are mostly free to use can open such files. The World Wide Web consortium actively maintains and updates the html specification.
FreeFileConvert uses tuned encoding for XLS to HTML conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload XLS files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized HTML results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent HTML audio with dependable progress tracking.
.xls was extended to the Microsoft Office XML format spreadsheetML which was later succeeded by the Office Open XML specification. The format stores data as fixed sized streams and sub streams which contain cell records with actual user input cell data, formulas, cell properties, along with meta data about the file including information such as document author, date of creation, worksheet names etc. The main streams in the xls format are Workbook stream, Globals sub stream, and the worksheet sub stream.
The internals of an html file are a structure of nested html elements represented as language specific tags enclosed in angle brackets for example '<title>'. There are several of these tags each with their own representative meaning in the html markup language. The html specification relies on the hypertext transfer protocol to distribute .html files over a network such as the internet. However, .html files can also be distributed as embedded content within an email.
Upload your document file in the XLS format from your device, Dropbox, or Google Drive.
Select HTML as the output format and click Convert. Adjust optional settings if needed.
Download the converted document file. Each file stays available for up to 5 downloads.