Can't Open Access Database File - Unrecognized Format

Sep 8, 2014

I have Microsoft Access DataBase file 2007. I tried to open it I got an error message "unrecognized file format".

The machines are DELL Windows 7 32bits with Microsoft office 2007.

While this file is worked with DELL Windows 7 64its.

Why I got this error and how to solve it?

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Unrecognized Database Format - Repair File?

Jun 4, 2014

I created a database for my Dad's farm and it was all going well until I have been away for a while. I ensured the DB was backed up properly before I left but he didn't know how to back it up himself apparently so now we are in trouble.

Anyway, one day he went to open the DB and got the "unrecognized database format" message and the file doesn't open at all. The DB was created in Access 2013 and has only ever been used in 2013 (though my Dad uses runtime as he doesn't have a full license like me).

There is a couple of months worth of data which would cause a real headache if it was lost so fixing the file is the best outcome if at all possible, I tried the "compact and repair" from inside access without the DB opened but got the same message. I noticed that there is 3rd party software online claiming to fix all access files but they sound a little too good to be true and a good source of infecting my computer with a virus.

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General :: Access 2007 Unrecognized Database Format?

Jul 27, 2015

I am on a deadline today and when I went to open an Access 2007 (I abhor the fact that I am forced to use 2007) database, it will not open. It gives me the error message Unrecognized database format [file path].

I have tried creating a brand new database and importing all objects from old to new but I get the same error message.

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General :: Error 3343 - Unrecognized Database Format (Access 2007)

Aug 19, 2015

I have a standard shared Access DB application (i.e. central BE on the network, multiple users running their own copy of the FE on their local machine) Has been in production for a while, no major issues.

New user has been added in recent weeks. My error logger has picked up an error he hit earlier today - doesn't appear to have been fatal (he hasn't come to me with a problem, suggesting he just "OK"d the error prompt and continued on - I need to confirm this with him though...)

Error was 3343 "Unrecognized database format 'C:TempMyDBMyDB.accde'."

Can see it was tripped on a particular form which queries certain data into a subform (so he was obviously able to open the FE and connect to the BE fine; it was several steps down the road where the error has occurred).

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Unrecognized Database Format

Jun 17, 2005

Hello,

I had a database on a server. The serve went down. Now when I attempt to open the database I get the following error:

Unrecognized database format 'S:6277_Database_Tracking_Log6277_DatabaseScann ing_Database.mdb.

Is there anyway I can recovery this database? I do not have a backup. I tried to
Tools>Database Utilities>Compact and Repair Database

But that did not work.

Any suggestions?

Thanks.

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Unrecognized Database Format

Oct 6, 2005

Hello. Just got the following message when trying to open a database file: "Unrecognized database format '[filename]'.

Do anyone know why this occurs, and more important, do anyone know if it's possible to fix it?

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Unrecognized Database Format

Apr 23, 2006

Hi all...

can anybody pls pls help me?
some days back my backend database file was deleted.. and now anyhow i've recovered it thru one of the recovery software...

when i try to open the mdb file which is 3mb its giving me msg "Unrecognized database format"
i've done lot of excercises to open it.. but failed ..

pls i need help as this is a matter of my job

ali

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Jul 24, 2015

I have my access database made using Access 2007.I have been working on this for about 6 months at work. I decide to make a copy of it to take home so I can work on it at home. At home I have Access 2013 and Access 2007. However when I try to open the copy I brought from work it gives me an error message saying "Unrecognized Database Format (File location and name..)"

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Unrecognized Database Format Error

Feb 4, 2014

One of our encoders experienced this error when trying to open the database (local). I tried to open it on my end and I could replicate the error she's getting. I have searched for possible solutions but to no avail. How to recover the corrupted database.

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General :: ADODB - Unrecognized Database Format Error

Jun 9, 2014

I am getting the error " Unrecognized Database Format Error.

Sub ShowUserConnected()
Dim cn As New ADODB.Connection
Dim cn2 As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim i, j As Long
cn.Provider = "Microsoft.Jet.OLEDB.4.0"

[Code] ....

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Unique "Unrecognized Database Format" Problem W/ Multiple Users

Oct 20, 2005

I have read through just about every post on this forum related to "Unrecognized Database errors" and have not found a solution to my direct problem.

Stats:
Database is running Access2K on all machines; db is on network location, no sharing issues or permission issues have been identified, no other databases in this network location have had this problem. also, we have tried compact-repair and also have tried re-creating the database and neither have proved successful.

I can open the database just fine if I am the only one opening it. If someone else tries to open it once I have it opened one of the following occurs:

1. Nothing. Hourglass appears for a split second, then nothing happens.
2. Error message "unrecognized database format "mydb.mdb"" appears. If I click OK and both users close the db, it can be opened just fine again by the first user. It doesn't matterwho opens it first, but the second user gets this message.

Any ideas why this is happening?

Thanks!

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Modules & VBA :: Determine File Format Without Opening Database (Using Access 2007)

Jul 15, 2014

Using Access 2007, can I return a value for CurrentProject.FileFormat WITHOUT opening the database?

I'm looking for a way to determine the file version of a given Access database without actually "opening" the database in Access (I don't want it to ever be visible at all or in any way).

So to open a database in Access 2007 "without opening it," I'm using:

Code:
Dim db As DAO.Database
Set db = DBEngine.Workspaces(0).OpenDatabase("C:Path-ToFile.accdb")

From here, there are at least two different "version" indicators that can be used, as in this example:

Code:
Debug.Print db.Properties("Version").Value
Debug.Print db.Properties("AccessVersion").Value

Now, if you run this code on an Access 2002/2003 .MDB file, you will get:

Code:
4.0
09.50

If you run this code on an Access 2007 .ACCDB file, you get:

Code:
12.0
09.50

Note two important factors:The db.Properties("Version") seems to be returning the JET version from what I can see in research. This is NOT what I'm after.

The db.Properties("AccessVersion") returns THE SAME VALUE for an '07 ACCDB as it does for an '02-'03 MDB, since Microsoft never updated it, apparently.

Now.... the one way that I have found that ACCURATELY describes the version of a given access database file is to use:

Code:
Debug.Print CurrentProject.FileFormat

...as this will always return, for example, 2.0 for an Access 2.0 .MDB file; 10 for an Access 2002/03 .MDB file; and 12 for and Access 2007 .ACCDB file (and there are others; these are AcFileFormat bitmask constants as described in Access support).

BUT, this CurrentProject object doesn't seem to be available (so far as I can see) when using the "open without opening" method described above.

SO, is there any way to return the FileFormat value without opening the database visibly? (Merely basing it in the extension isn't right either.... that would be easy but not accurate as several formats use MDB.

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What i am aware of is that i cant just read the field containing the Excel File into a Byte Array and pass it to the Excel object in C#,as the file is wrapped in the OLE Wrapper used by Access while inserting the file in database.

I have tried locating the Header of Excel file from the byte array and read the file from there on but it is not working.

while (true)
{
if (0xE11AB1A1E011CFD0 == BitConverter.ToUInt64(byStream, i))
break;
i++;
}
output.Write(byStream, i, byStream.Length - i-1);

byStream is a byte array into which i have read the Excel file from Database.
I am locating the Excel file header in the byte stream and am writing the byte array to a file from that location.But on opening the written file it dosent work.
Similar approach had worked in case of Images but now in this case.

Can some one please tell me as to how i can open the Excel File.
Can I use Interop.Access object to achieve the goal??

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I have researched the internet and see that it has something to do with network permissions. I have worked with my IT department and this appears to be resolved!

Is there a setting I need to check in the front-end and/or back-end copies of the databases?Why is there no file name in the error message?

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I have made a database, splitted it and then made the front end as accde. After that I copied both Front end & back end files in a shared folder. It is working fine as long as I am using it from my computer, but when I go to the other computer and try to open the front end, it gives the message of Unrecognized format error. This problem is only with the accde file, all other files are opening except this.

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"Cannot open database ". It may not be a database that your application recognizes, or the file may be corrupt."

However, when I tried it on another computer I managed to open the database but when I was closing it I got the same message again. The database is working OK, but how do I get rid of the message?

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I have tried two methods but failed:
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See picture.

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We have a new user who is unable to get into a database. Another user in the same office had no problems.

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