Xlsx why

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Best Bluetooth Speakers. Awesome PC Accessories. Best Linux Laptops. Best Gaming Monitors. Best iPads. Best iPhones. Best External Hard Drives. All the information contained in a worksheet is organized in different sections in the XML file.

As can be seen, this worksheet contains contents in cells A1 through B2 and an image. In addition, cell G13 is currently the active cell in the worksheet. Contents of this XML file are as shown below. You can post your findings in Spreadsheet File Format News section. Table of Content. What is an XLSX file? The tab has theme color applied to it. Its mentioned in the XML file with tag following the theme id. The tabSelected value is set to 1 which shows that this is the selected sheet As can be seen in first image above, cell G13 in the worksheet is active cell which is also mentioned in the XML file.

FlexCel 6. Strict xlsx files are a different file format from normal xlsx files, and you can select them when doing a "File Save As Now the question is: Should I use normal or strict xlsx files?

And the short answer is: Use normal xlsx files unless you have a non-negotiable requirement from your customers to use strict xlsx. The long answer: When Microsoft introduced xlsx back in Excel they didn't have the time to define all the parts of the new file format, and so for some parts mostly drawings they just reused an older xml file format: Office XML Formats.

Using the existing file formats for the parts that weren't ready gave them a head start and allowed them to ship xlsx earlier, but it introduced at least two problems:. The style and namespaces for the xml are different. This is mostly a cosmetic issue, but for example the old xml format uses pascal case for the identifiers for example " L egacy D rawing" while the new system uses lower camel case l egacy D rawing.

The old xml also relies more on attributes while the new one relies more on xml children, store booleans differently and a long list of etc.

In general the xml in those legacy parts is very different from the rest of the newer parts.