Software & Apps File Types What Is a CACHE File? The ins and outs of cache 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 22, 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 CACHE file extension contains temporary information that a program sets aside because it assumes you'll want to use it again soon. Doing this allows the software to load the information faster than it would take to find the original data. CACHE files aren't meant to be opened by anyone because the program that uses it will use it when it needs to and then discard the CACHE files when necessary. Some CACHE files can get pretty large in size depending on the program and data you're working with. If your CACHE file is under a different format, it may instead be a Snacc-1.3 VDA file. Paul Guzzo / Getty Images This article only pertains to opening the file type .CACHE. This could be confused with cache files that are often deleted through a browser to fix specific errors. Those types of cache files rarely end in the .CACHE file extension. How to Open a CACHE File Most CACHE files you encounter aren't meant to be opened by you. You can open one if you want to view it as a text document, but it likely won't help you read the file like you're used to with regular text-based formats like TXT, DOCX, etc. The program that created the CACHE file is the only software that can use it. To open a CACHE file to see it in its text form, just use a regular text editor like Windows Notepad or one of these free text editors. Again, the text is most likely scrambled, so it probably won't serve any real purpose. Since these text editors don't recognize the .CACHE file extension as a text document, you have to open the program first and then browse for the CACHE file from within the program. CACHE files that are Snacc-1.3 VDA files are associated with the Snacc (Sample Neufeld ASN.1 to C Compiler) program. How to Convert a CACHE File CACHE files aren't in a regular format like other files, so you can't convert CACHE to JPG, MP3, DOCX, PDF, MP4, etc. While those file types can be converted using a file converter tool, trying to use one on a CACHE file won't be of any help. However, CACHE files that are 100 percent viewable in a text editor can be converted to another text-based format like HTM, RTF, TXT, etc. You can do this through the text editor itself. If you have a CACHE file from a game built using Digital Extreme's Evolution Engine, the Evolution Engine Cache Extractor might be able to open it. Still Can't Open the File? If you've tried the suggestions above but your file still won't open, check the file extension again. You might have misread it, confusing another file extension for CACHE. For example, CASE files share some of the same file extension letters but they're actually in the SlipCover Case Template file format. CASE files are used for a different reason and therefore can't be opened with the same software that use CACHE files. More Information on Cache Folders Some programs may create a .CACHE folder. Dropbox is one example—it creates a hidden .dropbox.cache folder after it's installed. It has nothing to do with .CACHE files. Some programs let you view the files cached by your web browser, but as mentioned above, the cached files probably don't use the .CACHE file extension. You can use a program like ChromeCacheView to see the files that Google Chrome has saved in its cache folder, or MZCacheView for Firefox.