Houston Chronicle

How to Open an XLS File in Excel

XLS files are Excel workbook files created in Excel 97 or Excel 2003. The 2007, 2010 and 2013 versions of the program use the XLSX format by default to save workbooks, but can also use the XLS format.
Houston Chronicle

How to Open XLS Files on a Smartphone

XLS is the default file type for Microsoft Office Excel files. It is compatible with nearly all programs that read spreadsheet files. If you are looking to manage your spreadsheets while you're on the ...
Ars Technica

Excel taking minutes to load .xls and .xlsx files?

I'm hearing rumblings about some of our APAC users taking minutes at a time to load excel files over the network from the local file server. This seemed to start about 3 weeks ago, the troubleshooting ...
GIGAZINE

It is reported that the next-generation image file format 'JPEG XL' is 11% smaller in file size and 13% higher in image quality than the AVIF format

JPEG XL (JXL) is a next-generation JPEG format that uses a unique compression algorithm to compress images, illustrations, and screenshots. Such JPEG XL not only reduces the file size by about 11% ...