SIG file contains a digital signature saved in text format, which can be attached to, for example, a n email or Usenet message. Initally SIG files were used for email messages to avoid the need to sign it with the same text each time a new message was created. Currently, depending on the application, SIG file can contain HTML- formatted data or images.
Signature typically consists of:
SIG file can be created using an email client or manually with text editor. Signature is added to the end of message, in the footer.
The list that follows enumerates programs compatible with SIG files, divided into 2 categories based on operating system on which they are available. SIG files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.
Problems with accessing SIG may be due to various reasons. Fortunately, most common problems with SIG files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The list below will guide you through the process of addressing the encountered problem.
The main and most frequent cause precluding users form opening SIG files is that no program that can handle SIG files is installed on user’s system. This one is an easy one. Select Eudora or one of the recommended programs (for example, Microsoft OneNote, Microsoft Outlook, Microsoft Outlook Express) and download it from appropriate source and install on your system. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Eudora website and download the installer.
You still cannot access SIG files although Eudora is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why SIG files are not compatible with Eudora. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Eudora.
If you have the latest version of Eudora installed and the problem persists, select it as the default program to be used to manage SIG on your device. The method is quite simple and varies little across operating systems.
Change the default application in Windows
Change the default application in Mac OS
If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the SIG file in question. Being unable to access the file can be related to various issues.
Should it happed that the SIG is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the SIG file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.
If the SIG file was sent to you by someone else, ask this person to resend the file to you. 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 SIG extension was interrupted and the file data is defective. Download the file again from the same source.
There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Signature Format file again.
The operating systems may note enough free resources to run the application that support SIG files. Close all running programs and try opening the SIG file.
Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Signature Format file. It may be the case that the SIG files work properly with updated software that addresses some system bugs.
If you have additional information about the SIG file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on SIG file.