Convert XLS to XLSX online and free
I tried it and immediately fell in love! It was so easy to use! After a couple conversions I bought the guys a cup of coffee. A couple more and decided this was too good to abuse! I joined! My life is so much easier!
Tillie
I had a huge, problematic file to convert that couldn't go through the usual automated conversion process. The Zamzar team responded quickly to my request for help, and they took the extra steps needed to do it manually.
PDinSF
Used it for over a year to convert my bank statements to csv files. Great quick app, increased my productivity a lot. Also, amazing support - always helped me quickly!
Agata Wierzbicka
I've used this product for years. And customer service is excellent. Just had an issue where I was charged and I didn't agree with the charge and they took care of it, even though they didn't have to.
JH
A very useful and professional site. The service is easy to use and the administrators are helpful and courteous.
David Shelton
It’s my first time using it. I had some complications doing it. I’m not very good at this. But I wrote to the company and I had a lot of help. I’m satisfied with customer service and with the app.
Ana Suárez
Great for when you need a lot of conversions in a short time. You have directly access and can even put the subscription on for just a month.
Sabina Calis
Great thanks to you all for helping me to get the OLD files converted correctly. 20 years, quite a long time, reviewing the files brings much memory to me. That's the best gift I received last year. Thank you all again.
Jiunn-Ru Lai
I feel like Zamzar is an active team member, especially for projects that I work on where I am the workhorse and it saves so much time and frustration. I am spoiled with Zamzar, because they have set the bar for file conversion and customer service very high.
Deborah Herman
Fantastic service! My mom's computer died and she has 1000+ Word Perfect files she wants to keep for some reason. Since Word Perfect is basically dead, I decided to convert all her files. Zamzar's converter was perfect.
Aron Boyette
Trusted by employees at these brands
Employees of some of the world’s most well-known brands rely on Zamzar to convert their files safely and efficiently, ensuring they have the formats they need for the job at hand. From global corporations and media companies, to respected educational establishments and newspaper publications, employees of these organisations trust Zamzar to provide the accurate and reliable conversion service they need.
Your files are in safe hands
Zamzar has converted over 510 million files since 2006
For every 10,000 files converted on Zamzar, we'll plant a tree. By using Zamzar you are helping to make a difference to our planet
We're committed to regular charitable giving. Each month we donate at least 2% of our company profits to different charities
From your personal desktop to your business files, we've got you covered
We offer a range of tools, to help you convert your files in the most convenient way for you. As well as our online file conversion service, we also offer a desktop app for file conversions straight from your desktop, and an API for automated file conversions for developers. Which tool you use is up to you!
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One simple API to convert files
100s of formats for you to choose from
Documents, videos, audios, images & more...
Tools to suit your file conversion needs
You’ll find all the conversion and compression tools you need, all in one place, at Zamzar. With over 1100 file-conversion types supported, whether you need to convert videos, audio, documents or images, you’ll easily find what you need and soon have your files in the formats and sizing that work for you.
XLS Document Format XLS Converter
The XLS format, also known as the Excel Binary File Format, is the format for spreadsheet files created by Microsoft or other spreadsheet programs. XLS files contain one or more worksheets that are made up of cells that are arranged by row and by column, and they allow users to do calculations by inserting formulas into cells. XLS files also support charts, images, pivot tables and more, and this means that they are often the format of choice for anyone doing any form of calculation or working with numerical data. This file format also allows users to create and record macros using a macro-programming language called Visual Basic.
XLS files are widely used in education and in work, although in 2007 they were replaced by the XLSX file format as the primary file type used for Excel spreadsheets.
Users can open XLS files with either Office for Windows or Office for Mac, and both these programs support features, including macros that have been written in Visual Basic. While applications like OpenOffice allow XLS files to be opened, some features may be limited. XLS files can also be opened on Android or iOS.
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XLSX Document Format XLSX Converter
XLSX is a Excel file type developed by Microsoft as part of Office 2007. XLSX was developed by Microsoft as part of their Office 2007 development which focused on trying to allow information to be more readily shared between different programs whilst also reducing the file size footprint which had been increasing year on year.
XLSX files have the same functionality as XLS files in that they can include shapes, charts, formula, macros and more. The difference between the two is more technical. The XLSX file data is stored in the Open XML format which stores data as separate files and is zipped to reduce space. This is compared to the XLS file type which stores the data in a single binary file. XLSX files can be opened by various programs including various OpenOffice programs and on the web with applications like Google Drive.
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- XLSX Converter
How to convert a XLS to a XLSX file?
- 1. Choose the XLS file that you want to convert.
- 2. Select XLSX as the the format you want to convert your XLS file to.
- 3. Click "Convert" to convert your XLS file.