XLK Converter
Convert XLK spreadsheet documents to a variety of formats, edit and optimize documents online and free.
Drop Files Anywhere to Upload
The XLK file extension stands for Microsoft Excel Backup File. It is a backup file created by Microsoft Excel to store a copy of an existing Excel file (such as XLSX or XLS) to safeguard against data loss or corruption. This feature, which dates back to earlier versions of Excel, allows users to recover their work in case the original file becomes unusable. While newer Excel versions rely more on autosaving and version history, the XLK backup remains a useful tool for data recovery and archival purposes.
Drag and drop a XLK file from your workstation to initiate the process.
Select the conversion format that matches your XLK file requirements.
Allow the converter to finish, then download the file immediately.
Ensure Vertopal CLI is active before processing XLK spreadsheet document into the required format.