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Convert XLSX to XLS

Microsoft Excel has two main spreadsheet file formats: older XLS and newer XML-based XLSX first introduced in Excel 2007. Of course, in general the latter is a more advanced way to store spreadsheet data. However, older versions of Microsoft Office have difficulties reading this format. Plus, many third-party software especially older ones also prefer XLS document format. Therefore, converting XLSX to XLS is a demanded task. The obvious solution for the problem is to use Advanced XLS Converter – an all-in-one tool to convert XLSX to XLS and many other formats too. Unlike free online conversion utilities, Advanced XLS Converter works with XLSX documents of any complexity and size and converts them to XLS smoothly and totally error-free. How is that?

Instant-speed XLSX to XLS conversion

The core of Advanced XLS Converter is a multi-threaded direct read engine that processes XLSX files with enormous speed and accuracy. It reads the entire contents of the source XLSX file and recreates a corresponding structure in the XLS default Excel document. Conversion is extremely quick and universal. “Direct read” means the tool uses a low-level data processing which is both fast and library independent. Therefore, an installed copy of MS Office is not required.

Customizable conversion

Sometimes, the task is more complex then merely transfer data “as is” to the older Excel format. You may need to adjust settings, select columns or filter out unnecessary data. With Advanced XLS Converter you can do this in the most natural and effortless way. Advanced wildcard filters, sorting and custom selection of data to convert allow you to back-migrate to XLS files having much more freedom. And the ability to launch conversion from the command line provides for automated conversion of XLSX files to XLS.

Convert XLSX to XLS via command line

xlscnv.exe infile.xlsx outfile.xls [/FILTER | /COLUMNS | /COLUMNSLIST | /REVERSE | /SORTBY | /OPEN]

Simple XLSX to XLS conversion

"c:\Program Files\Advanced XLS Converter\xlscnv.exe" sample.xlsx outfile.xls

Convert selected columns

"c:\Program Files\Advanced XLS Converter\xlscnv.exe" mytable.xlsx outfile.xls /COLUMNS:NAME,STREET

Convert XLSX to XLS with sorting

"c:\Program Files\Advanced XLS Converter\xlscnv.exe" sample.xlsx outfile.xls /SORTBY:FIRSTNAME

Batch conversion XLSX to XLS format

"c:\Program Files\Advanced XLS Converter\xlscnv.exe" d:\base\*.xlsx d:\out\ /TOXLS

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Updated Mon, 13 Mar 2017

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