Describes the cause and action for error messages.
Error Message(English)：
does not recognize .xls file
[SOLVED] Excel 2016, opening .xls problem - Spiceworks Community
https://community.spiceworks.com/topic/1816121-excel-2016-opening-xls-problem
Excel 2010 can't open .xlsx files only .xls
https://community.spiceworks.com/topic/246692-excel-2010-can-t-open-xlsx-files-only-xls
Excel 2010 not available for opening XLS from Windows ...
https://community.spiceworks.com/topic/240165-excel-2010-not-available-for-opening-xls-from-windows-・・・
xls and xlsx files are not defaulted as Excel files in Windows 10 ...
https://excel.uservoice.com/forums/304921-excel-for-windows-desktop-application/suggestions/14693511・・・
XLS file will not open in Excel 2016, only gray view - Microsoft
https://social.technet.microsoft.com/Forums/lync/en-US/4a15e472-a265-4058-b439-7d79c2670817/xls-file・・・
How to Recover a Microsoft Excel File That Is Not in a Recognizable ...
https://smallbusiness.chron.com/recover-microsoft-excel-file-not-recognizable-format-76026.html
Resolve "Invalid XLS File Format Excel Error" On Windows OS
http://www.repairmsexcel.com/blog/fix-excel-error-invalid-xls-file-format-on-windows-os
Excel cannot open the file '(filename)'.xlsx' error | Stellar KB
https://www.stellarinfo.com/support/kb/index.php/article/resolve-error-excel-cannot-open-the-file-fi・・・
Studio 2015 does not recognize Excel 2016 documents - SDL Trados ...
https://community.sdl.com/product-groups/translationproductivity/f/studio/6020/studio-2015-does-not-・・・