Software & Apps File Types What Is a CMBL File? How to open, edit, & convert CMBL files by Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated on May 28, 2020 File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More Tweet Share Email A file with the CMBL file extension is a Logger Pro Data file that may contain videos, spreadsheets, and other analytical information. CMBL files are generally used by students to store data collected by science and math experiments. How to Open a CMBL File CMBL files are XML based, which means any free text editor can be used to view them, like Windows Notepad or a program from our Best Free Text Editors list. Some web browsers may try to open CMBL files as a text file and display it in the browser. If a text editor or web browser displays the CMBL file in a strange or unreadable format, Logger Pro can be used instead (a free demo is available). The free Vernier Graphical Analysis app for iOS, Android, Windows, and macOS can open CMBL files, too, but it might not be able to read all the information contained in the file. If you find that an application on your PC does try to open the CMBL file but it's the wrong application or you'd rather have another installed program open CMBL files, you can change the default program that opens CMBL files. How to Convert a CMBL File If the CMBL file is readable outside of Logger Pro, you can open it in a text editor or maybe even Microsoft Excel, and then save it to a new format. Excel can also be used to plot information from a CMBL file to a graph without using Logger Pro. This Convert CMBL Into Excel File YouTube video is helpful if you're wanting to do that. Otherwise, we recommend installing the trial version of Logger Pro so that you can open the CMBL file there to save/export it to a different file type, possibly even to a Logger Lite Document file (.GMBL). If Logger Pro doesn't let you export the CMBL to GMBL, you might be able to import the file into the free Logger Lite program and then save it as a GMBL file. With the Logger Pro trial, you can most likely also "print" the CMBL file to a PDF file if you have a PDF printer installed. Use the online cmbl2csv converter tool if you want to convert CMBL to CSV. Still Can't Open the File? If your file won't open even after trying the suggestions above, double-check the file extension. You want to make sure that your file actually does end with the .CMBL file extension because some files use a similar extension even though they're in a totally different format. For example, a CML file might look like a CMBL file but it's actually a Chemical Markup Language, CrytoMailer Encrypted, or Crazy Machine Lab file. None of those formats are the same as Logger Pro Data files, which means they can't be opened in the same way as CMBL files. CBL is another example where the file extension is used for COBOL Source Code files. They're unrelated to CMBL files and therefore are opened with a different program.