Trouble opening dms file on Mac

I can kind of open the file in text edit, but I can’t really tell what’s it about or what sort of file it's supposed to be other than it was downloaded from Joyce Meyer webpage. I’ve tried The Unarchiver, but that can’t open it either. MaxUAE isn’t supported on my laptop. I’ve tried moving the download to the laptop hard drive, right clicking and "get info”, then coping the the location it is from into Safari, but I get an “opps, you’ve wondered off the path. The page you’re looking for doesn’t exit” page error 404. I’ve tried coping the file and renaming it to .pdf as that it the file it might have previously been, but I get a "The file “AnualReport copy.pdf” could not be opened. It may be damaged or use a file format that Preview doesn’t recognise.” message. Is there anything else I can try to open the file?


Posted on Jan 8, 2024 4:59 AM

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Posted on Jan 8, 2024 7:17 AM

Here I quote from a posting by @ Gary Scotland so any acknowledgements below to him


" First, try opening in Text Edit, any plain text in the file will show up and may give you some guidance

Next, contact the originator of the file to find out what the file type should be so you can change the file extension as follows:


I have this note from my filetype data base:

A file with a .dms extension is a file that has been downloaded and renamed by the Apple Safari web browser or the Apple Mail email client. It contains the contents of a file that did not have a file extension or was erroneously renamed when downloaded. The .dms extension is a result of a bug in Safari and Mail.


For example, sample.pdf may become sample.dms or sample.pdf.dms when downloaded with Safari or Mail.


To open a DMS file, rename the .dms extension with the appropriate extension for the file type. For example, if you know you downloaded an .XLSX file that was renamed with the .dms extension, click on the extension to highlight it and change it back to .xlsx. Then, you can open the file with a program that supports XLSX files. "

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Jan 8, 2024 7:17 AM in response to CreativeBecky

Here I quote from a posting by @ Gary Scotland so any acknowledgements below to him


" First, try opening in Text Edit, any plain text in the file will show up and may give you some guidance

Next, contact the originator of the file to find out what the file type should be so you can change the file extension as follows:


I have this note from my filetype data base:

A file with a .dms extension is a file that has been downloaded and renamed by the Apple Safari web browser or the Apple Mail email client. It contains the contents of a file that did not have a file extension or was erroneously renamed when downloaded. The .dms extension is a result of a bug in Safari and Mail.


For example, sample.pdf may become sample.dms or sample.pdf.dms when downloaded with Safari or Mail.


To open a DMS file, rename the .dms extension with the appropriate extension for the file type. For example, if you know you downloaded an .XLSX file that was renamed with the .dms extension, click on the extension to highlight it and change it back to .xlsx. Then, you can open the file with a program that supports XLSX files. "

Jan 8, 2024 9:20 AM in response to CreativeBecky

I understand clearly that the file arrived with a dms extension.


Can you contact the website in question and ask them what file format are they using for these files?

If they were supposed to be pdf, and were downloaded without errors, then changing the file extension should have been a quick fix. But of course, if they were in some other format, say Excel, you'd have to change the file extension accordingly.

Jan 8, 2024 7:13 AM in response to CreativeBecky

See the answer here by somanna

User level:

Level 1

133 points

Nov 2, 2019 3:23 AM in response to toxicmich

Hey, I too have faced your problem today when the Lab where I gave my blood for testing sent me the reports as a .dms file! Other applications such as Unarchiver, MaxUAE suggests in other like posts were not able to open the file. I then did this: clicked on the link to the reports in MAIL! The link opened the document in Safari and I was able to view the results only but there seem to be no provision for me to save the reports to my computer. Hope this helps.

Regards

Dr. Somanna

PS

Soon after writing the above, I accessed the document in Safari and clicked on the share ikon at the top right and chose to share the document to my NOTES. When I opened my NOTES, the document was not there but only the link was there. Clicking on the link led to the opening of the document in Safari.


How to open DMS file extension on Mac - Apple Community


Jan 8, 2024 9:12 AM in response to CreativeBecky

Three important question if I may


1 - Have you made a Donation .


If so, did they send an e-mail with a Tax Receipt for the Donation in that e-mail


2 - Do not bother with the Amiga Disk Masher Image application. That was just a friendly banter between myself and @BDAqua


3 - In your above image and choose the First Image " AnualReport.dms "


Use the Get More Information of that file ( Control on keyboard and click the file "


Remove the ( period ) .dms extension in the name and add the ( period ) .pdf


What happens now ?


Jan 15, 2024 11:28 AM in response to CreativeBecky

CreativeBecky wrote:

I’ve checked my extensions in Safari. It says “No extensions”. I am unable to try File > New extension off window as there isn’t a new extension off window from File on Safari on my laptop.

Perhaps you are using an old version of Safari. That could explain why it is downloading the HTML content instead of displaying it. When web developers try fancy new things, they often test them only old the newest computers, and often only using browsers like Google Chrome.


This could be an error on the part of the web site developer. Perhaps they don't realize they are excluding people with older computers. Or perhaps they did this on purpose and they only want the wealthiest people with the newest equipment because their analysis has determined that those people are more profitable.


But regardless, please stop with hexfiend stuff. You're way, way off. Your web browser simply isn't interpreting the content properly. A faulty web extension could be one explanation. And old web browser would be another.

I’m not sure what you mean by me downloading 3rd party apps. I normally only download from the App Store or from a reliable webpage. I have antivirus software installed on my laptop and I’ve not got a virus or scammed.

You see? That's what I mean. Another excellent way to break basic functionality like this is with 3rd party antivirus apps.


You don't need any 3rd party antivirus apps. Your Mac includes antivirus capabilities built into the operating system. You don't need anything else. The only way that people get malware on a Mac is by downloading it, on purpose, and bypassing multiple layers of Apple security protections to install it.


People install malware to run pirated, illegal copies of expensive software or to watch copyrighted video content like movies or live streams of football games. This is huge. Of course, people don't intend to install malware. They are being scammed. They don't realize it for years afterwards in most cases.


While you probably haven't been doing any of that, I am concerned that you seem more savvy than many people. You don't seem to have any problem downloading and installing 3rd party apps like The Unarchiver and Hexfiend. Those abilities can get you into trouble. Those two apps are legitimate and won't cause any problem. But there is no way to tell if you have malware installed unless you look. Ironically enough, 3rd party antivirus apps are notoriously bad at detecting malware. There is currently a big spike in malware right now. 3rd party apps are ineffective. Instead, what people are doing is posting screenshots from 3 hidden directories. We'll see 30 or 40 malware files in there from the past 3 years and tell the poor OP something like "delete everything but Microsoft, Google, and Zoom".


It's really that bad. Antivirus apps cause more problems than malware itself and are particularly bad at their One Job. I'm not sure what's causing your particular problem. An old web browser is the most likely candidate. If you update that to something recent (anything 3 years old or newer) and still have the problem, then it's your antivirus app. You might need assistance on removing it. In many cases, modern software, especially 3rd party antivirus apps, can be difficult or impossible to remove. Many don't include uninstallers or the uninstallers they have simply don't work. You can't trust anyone on the internet anymore - anyone!

Jan 8, 2024 8:34 AM in response to BDAqua

Thank you for your advice. I had already seen your comment on another Apple forum page before I created this topic. I’m glad you was able to resolve the issue.


Unfortunately I am unable to try your suggestion as there isn’t a link I can click on. The file is already download on my laptop. When I click on the download there isn’t a "report in Mail” option. A message comes up saying “There is no application set to open this document” There is only “Search the App Store” or “Choose Application...” I have tried both and neither help much. I get the message “App not available. The app is currently not available in your country or region" in the App Store.


I haven’t found an Application on my laptop to open the file other than Text Edit. In Text Edit there is just lots of blue links about donating, todays show, conferences etc. Than further down there is “opps, you’ve wondered off the path. The page you’re looking for doesn’t exit” text. I’m sure I wouldn’t have downloaded it if this is all the file contains.

Jan 8, 2024 9:59 AM in response to CreativeBecky

Either you are using some 3rd party web browser or you have some kind of content blocking/scrambling extension installed in Safari.


I can't help with any 3rd party tools. They do what they do, or don't. In Safari, you can go to Settings > Extensions and disable your extensions. In recent versions of Safari, you can go to File > New extensions off window


This website is serving HTML content using paths that don't end in ".html". There's nothing wrong with that. They seem to be doing it properly. It's just that something installed on your computer is breaking this functionality.


I can't begin to guess what it might be that is breaking this. You seem to be pretty adept at locating, downloading, and installing 3rd party apps. However, that can be very risky. The internet is absolutely full of scams and charlatans of all kinds. If you aren't very careful, you can get fooled and scammed out of your money. These scammers are experts at what they do. Do your own research. For all its faults, and they are legion, Wikipedia is one of the more unbiased and reliable sites on the internet (relatively speaking, of course).

Jan 15, 2024 9:39 AM in response to Owl-53

Hi

1) I have made a donation, but I can’t see a tax receipt in the email. I’m not sure how a tax receipt helps me.

3) If I change the file to .pdf a message comes up asking me “Are you sure that you want too change the extension from “.dms” to “pdf” If you make this change, your document may open in a different application” I clicked on “use.pdf". Then when I double click on AnualReport.pdf a message comes up saying “The file “AnualReport.pdf” could not be opened. It may be damaged or use a file format that Preview doesn’t recognise”. I clicked ok.


I’m planning on trying Disk Utility First Aid to see if that identifies corrupt files, but I have a lot on my laptop hard drive so this could take time. I’ve not got round to trying this yet.


I don’t think I have any other software that can open pdf other than Preview on my laptop. Is it worth trying other software? If so which? I don’t want to use Adobe.


I could be wrong about the dms files originally being pdf’s. I’ve tried contacting the originator to find out, but not got a reply yet.


Becky

Jan 15, 2024 9:56 AM in response to etresoft

Hi


I’ve checked my extensions in Safari. It says “No extensions”. I am unable to try File > New extension off window as there isn’t a new extension off window from File on Safari on my laptop. When I open a new webpage > share > more the only extensions I have added are Microsoft One Note and OneDrive.


It is possible I used Mozilla Firefox to download the files, although very unlikely. I used to use Mozilla Firefox many years ago that was before I made the download. I’ve not really used it since.


I’m not sure what you mean by me downloading 3rd party apps. I normally only download from the App Store or from a reliable webpage. I have antivirus software installed on my laptop and I’ve not got a virus or scammed.


Becky.

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Trouble opening dms file on Mac

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