LA (Office) Files — How do I open it? — Whitest — To open the LA file in Office 2016, go to help > Open With” > Browse, and look for the one labeled ‑.DOCX”. Click on it, and be sure to tick the Use the following format” box. Then, click OK. If the program does not start, close and restart it. How to open a.LA file in Excel. — In addition to the ability to open the.LA file directly in Excel, you can also perform the following steps to convert.LA files to .DOCX files. . DOCX — Click on office Adding> Microsoft .DOCX Add-ins and click. LA file to Office — What about exporting a.LA file as a .DOCX file? — Whitest To use .DOCX files, select office Adding> ‣ Microsoft .DOCX Add-in and click Open. Note: You must be connected to the Internet or run the Microsoft Office desktop applications before opening .DOCX files. You cannot open it directly within PowerPoint. .DOCX — How do I open it? — Whitest To open the .DOCX file, click‣Office Adding> ‣ Microsoft .DOCX Add-in and click Open. LA file to PowerPoint? — To convert a.LA file to a .DOCX file and use it within PowerPoint, see Creating and Editing .DOCX files. LA File to Excel — To open .DOCX files in Excel, click office Adding> ‣ Microsoft .DOCX Add-in and click Open. A .DOCX file in PowerPoint? — To open a .DOCX file in Excel, you will not be able to open it directly within PowerPoint, even after opening both the file and the .DOCX project in Office. You will need to make changes to the .DOCX file while opening both the file and the .DOCX project. To do this, you will need to have Excel open the file or the .DOCX project in Excel in a separate workbook. A.