What is the regex for document file extension?

The regex pattern for document file extension is `\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$`. This pattern validates common document file extensions.

How do I use this regex in JavaScript?

In JavaScript, create the regex with `const regex = /\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$/;` and test with `regex.test(yourValue)`. It returns `true` if the value matches.

How do I use this regex in Python?

In Python, use `import re; re.match(r'\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$', value)`. The raw string prefix (`r`) prevents Python from interpreting backslashes as escape characters.

Is this regex case-sensitive?

By default, yes. To make it case-insensitive, add the `i` flag in JavaScript (`/\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$/i`) or use `re.IGNORECASE` in Python.

Regex for Document File Extension

Regex Pattern

\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$

Common document file extensions

Quick Answer

The regex pattern for document file extension is `\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$`. Common document file extensions. This works in JavaScript, Python, Ruby, PHP, Java, and most regex engines that support PCRE syntax.

Test Examples

Input	Result
report.pdf	✓ Matches
data.xlsx	✓ Matches
slides.pptx	✓ Matches
notes.txt	✓ Matches
image.jpg	✗ No match
script.js	✗ No match
document	✗ No match

Code Examples

javascript

const regex = /\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$/;
const isValid = regex.test(value);

python

import re
pattern = r'\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$/', $value)) {
    echo "valid";
}

java

String pattern = "\\.(pdf|doc|docx|xls|xlsx|ppt|pptx|txt|csv|rtf|odt)$";
boolean isValid = value.matches(pattern);

Frequently Asked Questions

Related Regex Patterns

File Extension

File extension at the end of a filename

Image File Extension

Common image file extensions

Video File Extension

Common video file extensions

Absolute Unix Path

Absolute filesystem path starting with /

Windows File Path

Windows absolute file path (C:\folder\file.txt)

Unix File Path

Unix absolute file path (must have at least one path component)