Last updated on
Jan 16, 2026
Reduce 21 mb Excel File to 15 mb For Free
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When I started searching for a PDF to Word doc. a few days back, I downloaded 4 different trials and hated all of them!! They were not user friendly like this one is!! To anyone reading this, DO NOT waste your time researching other apps, you will not find anything better then this one! I would absolutely recommend PDFfiller to anyone who is reading this!!... and so will you.
2015-06-03
I never got the code in my email to complete the emailing of the document to the tenant. Other than that I love the ease of using it. I hope to get help with emailed code soon.
2018-01-06
I guess a better comment today would be that I'm still trying to master the filler prompts etc so I have been getting lost and don't know for sure what to do, but I did do bette
2019-11-19
Very easy to navigate and use
Very easy to navigate and use. The plan is very much worth it if you plan to use and print a lot of documents. I would highly recommend using PDF filler for all of your personal and legal documents.
2024-05-23
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Not much not to like. Spell checker would be nice. though.
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After creating a document and saving it, it landed back in the template folder. Have to switch over to documents to access
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Editing PDF DOCs. Ability to search works great.
2022-11-03
mostly good. Had trouble one day but it looked like it was site-wide. It was fixed by the next day. Would like to better understand how to capture documents and transfer to other files etc.
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2021-01-15
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2020-06-26
How to Reduce 21 MB Excel File to 15 mb
Follow this guide to Reduce 21 MB Excel File to 15 mb on pdfFiller
01
Navigate to pdfFiller and sign in to your account or create one if you're a new member
02
Click Add New and browse for a file you need to compress, from the desktop or cloud storage
03
Alternatively, browse the pdfFiller library for a template you need
04
If you have the document uploaded to your account before, navigate to My Documents to find it
05
To reduce the size of a document, click on it and select Split in the right-hand menu
06
Indicate the pages you want to separate from the original file by clicking on them
07
Alternatively, you can divide the document in a half and keep required pages in it
08
Name the new files or leave them with generic names
09
Click Split and wait a few seconds
10
Click Download Now to save the results
Reduce 21 MB Excel File to 15 MB Feature
Managing large Excel files can be challenging. Our feature helps you reduce a 21 MB file to just 15 MB, making it simpler to share and store your data effectively.
Key Features
Shrink file size without losing essential data
Easily share files via email or cloud services
Improve loading times for faster access
Optimize spreadsheets for better performance
Potential Use Cases and Benefits
Ideal for professionals needing to send reports quickly
Great for teams collaborating on large datasets
Helpful for students submitting assignments within file size limits
Useful for businesses aiming to improve data storage efficiency
By reducing your Excel file size, you can solve the problem of sharing and managing large documents. You will experience swift performance and improved accessibility, allowing you to focus on what truly matters—your data.
How to Reduce a 21 mb Excel File to 15 mb
To reduce the size of your 21 mb Excel file to 15 mb, follow these steps:
01
Open the pdfFiller product on your device.
02
Click on the 'Reduce File Size' option in the main menu.
03
Select the 'Excel' file format.
04
Click on the 'Choose File' button and locate the 21 mb Excel file on your device.
05
Once the file is selected, click on the 'Reduce File Size' button.
06
Wait for the reduction process to complete. This may take a few moments depending on the size of your file and your internet connection.
07
After the reduction process is finished, you will be prompted to save the reduced file.
08
Choose a location on your device to save the file and click on the 'Save' button.
09
Congratulations! You have successfully reduced your 21 mb Excel file to 15 mb using the pdfFiller product.
If you have any further questions or need assistance, feel free to reach out to our support team. We are here to help!
For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
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How do you reduce the MB size of a photo in Excel?
With your file open in your Microsoft Office application, select the picture or pictures that you want to compress. Under Picture Tools, on the Format tab, in the Adjust group, click Compress Pictures.
How do I reduce the MB size of an Excel file?
You can reduce your file size by saving your spreadsheet as a binary workbook (.xslb) instead of the default format (.xslx). The default format is XML based, which is important if you're using your data with third-party programs because XML is an open standard.
How do I reduce the MB size in Excel?
You can reduce your file size by saving your spreadsheet as a binary workbook (.xslb) instead of the default format (.xslx). The default format is XML based, which is important if you're using your data with third-party programs because XML is an open standard.
How do I compress a 100 MB Excel file?
This can be done by right-clicking the Excel file and choosing “Compressed (zipped) folder” under the “Send to” tab.
How many MB is too big for Excel?
50 megabytes (MB) default. 2 gigabytes (GB) maximum (2)
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