CSV to XLS
Convert CSV to XLS online and free
Step 1 - Select a file(s) to convert
Drag & drop files
Max. file size 50MB (want more?)
How are my files protected?
Step 2 - Convert your files to
Or choose a different format
4.5 out of 5 based on 223 reviews
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.
PDinSFUsed 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 WierzbickaI have been so thankful for Zamzar’s support from the beginning of the Pandemic to the present day. Their service is first rate & their helpfulness is always the best it could be.
MaryA very useful and professional site. The service is easy to use and the administrators are helpful and courteous.
David SheltonIt’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 SuárezI use Zamar whenever I need to convert audio and video files from multiple submitters to 1 uniform file format for Audio and Video Editing. I can do multiple large files in a short amount of time.
Christopher BeeGreat 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 CalisGreat 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 LaiI 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 HermanFantastic 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 BoyetteTrusted 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!
Want to convert files straight from your desktop?
Get the AppFully integrated into your desktop
Convert over 150 different file formats
Convert documents, videos, audio files in one click
Need conversion functionality within your application?
Explore the APIOne simple API to convert files
100s of formats for you to choose from
Documents, videos, audios, images & more...
Why choose Zamzar?
With Zamzar, file conversions are easy, reliable and convenient, so you can quickly convert your documents, images, videos, and more, to the formats you need. With faster downloads of converted files, and friendly and helpful support when you need it, you’ll have everything you need to work with your files.

Ease of Use
In just three simple steps you can convert your file, and you can do so without ever leaving your browser.

Fast Downloads
We've recently developed real-time conversions, which means you never have to leave our site to convert and download your file.

Ad-Free
We know thatads can distract you from converting your files, which is why we decided to run an ad-free service.

New Conversion Types
New conversion types get added to our site regularly. We now support over 1100 file-conversion types!
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.
CSV Document Format CSV Converter
CSV, sometimes known as a comma separated values file is commonly used by spreadsheet applications. It allows plain text data to be saved in tabular format.
If a user has a large volume of data and needs to transfer it between applications then a CSV file is often used. The CSV file uses the comma character to separate the data (although other characters can and are used). Structurally a CSV file is fairly simple. It is this simplicity which makes them so powerful and popular because you can easily export and import data into other programs such as Microsoft Excel or the Notepad application.
Many applications have an import wizard that a user can follow which then enables the data to be displayed in an organised and clear way.
Related Tools
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.
Related Tools
How to convert a CSV to a XLS file?
- 1. Choose the CSV file that you want to convert.
- 2. Select XLS as the the format you want to convert your CSV file to.
- 3. Click "Convert" to convert your CSV file.
Convert from CSV
Using Zamzar, it is possible to convert CSV files to a variety of other formats:
CSV to DOC CSV to HTML CSV to MDB CSV to ODS CSV to PDF CSV to RTF CSV to XLS CSV to XMLConvert to CSV
Using Zamzar, it is possible to convert a variety of other formats to CSV files:
NUMBERS to CSV NUMBERS.ZIP to CSV ODS to CSV PDF to CSV WKS to CSV XLR to CSV XLS to CSV XLSX to CSVFrequently asked questions
If you’ve got any questions about converting or compressing files with Zamzar, we’re happy to help! We’ve answered a few commonly-asked questions below, to get you started, and you can find out more information about file conversion and compression with Zamzar, in our Help centre.
You can convert CSV to XLS using Microsoft Excel or a specific conversion tool such as Zamzar. To use Microsoft Excel, open your CSV file within the application and then click to save this as an XLS file on your computer. If you don't have access to Microsoft Excel, then you can easily convert your file with Zamzar’s web-based conversion tool. Simply upload your file to the converter, choose ‘XLS’ as your format to convert the file to, and then click ‘Convert Now’. Once the conversion is complete you can download the new file straight to your device.
You can open a CSV file in Excel fairly easily. Open Microsoft Excel, click the ‘File’ tab from the top menu bar, click ‘Open’ and then select your CSV file from the relevant folder on your computer. The CSV file will then open in Excel. If you are having problems opening your CSV file in Microsoft Excel, you could use an online converter like Zamzar to first convert the file to XLS format, and then open the XLS file in Excel.
You can convert CSV to Excel for free using a web-based conversion tool such as Zamzar, or using Microsoft Excel itself if you already have that installed. To use Zamzar, visit our homepage and follow the simple three-step conversion process to convert your file to XLS or XLSX for Excel. Once your conversion is complete, you can download your converted Excel file from the same page or, if you provided your email address at step 3, you can click the link sent via email to access your file.
If you already have Microsoft Excel installed, then you can use this to open your CSV file instead, and then resave it as an XLS file.
To convert your CSV file to Excel without opening it you would need to use a conversion tool. Zamzar is an online conversion tool that’s free and quick to use. With the three-step process, you can upload your file, select the option you’d like to convert your file to, and download your convertedl file, all from the same page. To convert to Excel, simply select XLS or XLSX as the format to convert to.
The fastest way to convert CSV to Excel is to use a conversion tool. There are many conversion tools on the market but one of the easiest and most accessible tools is Zamzar. With over 1200 file formats supported, excellent customer service support, and a free and easy three-step conversion process, your new Excel file can be saved to your device within seconds.
Alternatively, if you just have one file to convert, then you could open the CSV file with Microsoft Excel, and then save it as an XLS or XLSX file.