FDO File Extension

What is FDO file?

FDO filename suffix is mostly used for ModelSim Script Format files. FDO files are supported by software applications available for devices running Windows. Files with FDO extension are categorized as Developer Files files. The Developer Files subset comprises 1205 various file formats. ModelSim is by far the most used program for working with FDO files. Software named ModelSim was created by Mentor Graphics Corp.. In order to find more detailed information on the software and FDO files, check the developer’s official website.

Programs which support FDO file extension

Programs that can handle FDO files are as follows. Files with FDO extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Updated: 12/17/2020

How to open file with FDO extension?

Being unable to open files with FDO extension can be have various origins. Fortunately, most common problems with FDO files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Download and install ModelSim

The main and most frequent cause precluding users form opening FDO files is that no program that can handle FDO files is installed on user’s system. The solution to this problem is very simple. Download ModelSim and install it on your device. The full list of programs grouped by operating systems can be found above. One of the most risk-free method of downloading software is using links provided by official distributors. Visit ModelSim website and download the installer.

Step 2. Verify the you have the latest version of ModelSim

You still cannot access FDO files although ModelSim is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that ModelSim cannot handle files with FDO may be that the software is outdated. The latest version of ModelSim should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open FDO files to ModelSim

If you have the latest version of ModelSim installed and the problem persists, select it as the default program to be used to manage FDO on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Selecting the first-choice application in Windows

• Clicking the FDO with right mouse button will bring a menu from which you should select the Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where ModelSim is installed. Now all that is left is to confirm your choice by selecting Always use this app to open FDO files and clicking OK.

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected FDO file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• From the list choose the appropriate program and confirm by clicking Change for all....
• If you followed the previous steps a message should appear: This change will be applied to all files with FDO extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the FDO is not faulty

Should the problem still occur after following steps 1-3, check if the FDO file is valid. Being unable to access the file can be related to various issues.

1. The FDO may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the FDO file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. FDO file is infected with malware? Follow the steps suggested by your antivirus software.

2. Check whether the file is corrupted or damaged

If you obtained the problematic FDO file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with FDO extension was interrupted and the file data is defective. Download the file again from the same source.

3. Check if the user that you are logged as has administrative privileges.

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the ModelSim Script Format file.

4. Check whether your system can handle ModelSim

The operating systems may note enough free resources to run the application that support FDO files. Close all running programs and try opening the FDO file.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with ModelSim Script Format file. It may be the case that the FDO files work properly with updated software that addresses some system bugs.

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