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Lock XLSX Online

Lock Excel Documents Online for Free

Format Description

XLSX
Microsoft Excel Open XML Spreadsheet
XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.
XLSX
Microsoft Excel Open XML Spreadsheet
XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.

Get started with online XLSX locker

Free XLSX online locker and much more!
1
Select document format from a drop down.
2
Click on Open Locker App button.
3
Click inside the file drop area or drag n drop file into it to upload file.
4
Wait until documents are uploaded.
5
Enter password to secure your document with it.
6
Click on Lock button.
7
Download or share resulted document.
HOW-TO LOCK DOCUMENTS
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