What are .pptx .xlsx .docx files ? These are the files created by Office 2007, Up to office 2003 the it was .xls .ppt and .doc Most off them started working in Office 2007. If you create and just save a file from Office 2007, users with previous versions cant open this file.
In this case. When you save a file do “Save as” and select option “ word 97-2003 Document” from the “file menu” Then the saved file will be compactable for the entire previous versions But what will you do when you get a file with these extensions? Don’t worry! Microsoft released a tool to named “Microsoft Office Compatibility Pack” Using this tool you can convert office 2007 files to the compactable file format for older versions.
At work with excel files usually i use-xlsx recovery,as far as i know it is free,tool keep your work in Microsoft Excel workbook and you do not have other copies of this file, recover all these graphics, interviews, tables and reports in Microsoft Excel format,program is the best way to recover corrupt .xlsx file,can open any of your corrupted xlsx files, analyze it for errors and preview recovered contents,export contents into a new document and restore Excel file xlsx, you should register.
In this concern often i use this soft-xlsx file repair,because tool is free as far as i know,also it has many features,it can repair .xlsx even without touching your keyboard, just left click your mouse several times and all of your data will be recovered,automatically and attempts to repair xlsx corrupt, that was considered lost,recover maximum percents of your document manually, than the entire Excel workbook.
For word files advise use next tool-fix docx files,tool is free as far as i know,utility export recovered data into a new Word document,program scans damaged document, fix docx open and analyzes the data,will recover it and show in a preview window, where the user can check it and make sure, that it is recovered properly,can fix damaged docx and recover documents of different formats (*.doc, *.docx, *.dot, and *.dotx) as well as *.rtf (rich text files),can extract the data and fix docx file from any removable media even via local network of your organization.