If you saved your workbook (.xls) in some older versions of Excel with the backup function enabled, a separate .xlk file was saved as well for backup purposes. This pretty much what xls to xlk conversion does, but it can be only done using certain versions of Excel and cannot be done in latest editions of the program
Home > Search converters: xls to xlk
Conversion of xls file format to xlk file format beta
Search for xls to xlk converter or software able to handle these file types.
Convert Microsoft Excel 97 to 2003 workbook to Microsoft Excel backup.
We have found 2 software records in our database eligible for .xls to .xlk file format conversion.
Microsoft Windows software 
- convert xls to xlk on Windows
Microsoft Excel
A popular spreadsheet application distributed with Microsoft Office suite
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from xls file | Yes, Microsoft Excel supports xls file conversion as a source file type. | Yes | Yes | xls editor | Yes | No | No | No |
to xlk file | No | Yes | No | No | Yes | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned xls to xlk. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software 
- convert xls to xlk on OS X
Microsoft Excel for Mac
A popular spreadsheet application from the Microsoft Office suite
Additional links: Open xls file, Open xlk file
XLS
Files with xls extension are best known as spreadsheets from Microsoft Excel. A spreadsheet is basically a grid of cells sorted in rows and columns. Each cell can contain text, numeric or formula data. Excel XLS spreadsheets can be opened in most other similar programs, such as OpenOffice.org Calc.
XLK
An xlk file extension is related to Microsoft Excel a spreadsheet editing tool for Microsoft Windows and Apple Mac OS X (macOS). An xlk file stores backup of spreadsheet document.
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