WordPress Tutorials

Fix the File Type is Not Permitted error

How to Fix the ‘File Type Not Allowed’ Error in WordPress

You finally find the perfect SVG icon for your blog post header, drag it into the WordPress media library, and WordPress slaps you with an error.

Sorry, this file type is not permitted for security reasons. Same scene happens with CSV files, HEIC photos straight off an iPhone, AI files from your designer, and a dozen other formats people work with every day.

I’ve run into this enough times across client sites and my own projects that I stopped treating it like a problem and started treating it like a checkbox setting WordPress just hides from you by default.

How to Start an Online Store in 2026 (Step by Step)

Starting an online store is a big undertaking, but pretty much anyone can do it. In this complete guide, we’ll walk you through the process from beginning to end. You’ll be able to set up your website, add products to it, and even kick off your marketing strategy with an email list.

How to Export Form Entries to CSV in WordPress

Do you want to export your WordPress form entries to a CSV file? Exporting to CSV lets you easily use your WordPress form data in other applications.

Having your form data in a downloadable file makes it much easier to review, share, and organize. You can sort entries, filter details, or just keep a backup on hand.

And honestly, it’s way easier than most people think. You don’t need to mess with any complicated code or plugins that do too much.

In this article, I’ll show you the easy way to export your WordPress form entries to CSV. You can also use this method to open contact form entries in Excel.

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How to Require Payment on a WordPress File Upload Form

Ever lost a potential client because they uploaded a file but never paid the deposit? Or spent hours chasing payments after delivering work?

According to our research, cart abandonment rates average 70%, and file upload forms without integrated payment see even higher abandonment rates.

When payment and file upload happen together, completion rates jump by 40% based on our form optimization studies.

In this guide, I’ll show you exactly how to create WordPress file upload forms that require payment before submission.

How to Create a Refer-a-Friend Form (+ Template)

Want to grow your business with help from your customers and employees? Refer-a-friend campaigns are an excellent way to do so. In this post, we share how to create a refer-a-friend form from a template with WPForms.