LA (XLS) to XLSX converter or converter application is widely used across the web, the problem is that it is almost impossible to convert LA to XLSX with a free software or even a free web version, because the conversion process isn't fast. The following is the list of online tools that can help you convert LA to XLSX. 1. LA to XLSX Converter Free Is a free software (Windows, Linux, and Mac) that can be used to convert your text files like audio, video, Excel and Word in one seamless process. Download LA to XLSX Converter Free (free trial version). [download] The program works with text files (.zip, .txt, .csv, .xlsx) and also Excel sheets (.xls) for more detailed conversion. 2. LA to XLSX Converter Web Application This can only work using the free trial. You can have any amount of files up to 4 GB, so make sure if you want to use this application try your free trial first. [download] [download] 3. LA to XLSX Converter Desktop Application This is also a free downloadable application, but can only work in a 64bit system with Office 2022 (and newer versions), so you will need Office 2022 or later installed. [download] 4. LA to XLSX Converter It's a commercial application that's available from the creators of this website, but still an online converter that can be used. Click here to purchase LA to XLSX Converter. [download] 5. LA to XLSX Converter Offline: This is also a commercial application, but is a web based (desktop) application only. You will need to install the software first if you decide to make use of it. [download] [download] 6. LA XLS to XLSX Converter This software converts any Excel file to .xlsx in one step. It's also possible to create Excel XLSX files from any Excel file. [download] 7. LA XLS to XLSX Converter for Business This is another offline converter. It's a version of LA XLS to XLSX Converter with the addition of the Business version. [download] 8.