Office 2007 .bin file format

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Photo by Sylvia Eisenhauer - Tigerpfote. Exclusively licensed to codekabinett. Now and then you want to store binary data in your Microsoft Access database. If the binary data in question is a file like a picture, PDF or an Office document, this is no problem at all.

Despite its name, OLE Object is primarily a data type to store binary data; any binary data. So of course we can just store our binary keys in an OLE Object column. So we should ask a couple of questions. Well, these limitations make sense.

Indexing such lengthy data would be insane. And there is not much point in sorting Office Documents or pictures by their binary representation either. If you look at the Access reading or updating oleobjectxxxbin parts designer, you will quickly notice that there is no other binary data type available. For some weird reason, the Access team at Microsoft decided, you cannot create a column of this data type in the graphical table designer.

So hardly any Access developer knows about the binary data type. If a table already contains a reading or updating oleobjectxxxbin parts of the Binary data type, this column is displayed in the design view of the table and its properties can be edited. The Binary data type can be up to bytes in length, it can be sorted and indexed.

By default, the Binary data type in Access has variable length. Its name is confusing, as in SQL there is the Varbinary data type for variable length data and the Binary type for fixed length data. So how to create a Binary column in a table, if this is not possible in the table designer?

Then you create a DAO. Field with the Type DataTypeEnum. This will create a variable length Binary column. A simple 3rd option to create a binary field in your table is to copy one.

You can then rename the field and adjust its length. There is no fixed length Binary column available to copy in the system tables. Field in a Recordset. Here is a small sample procedure to add a new record to a table. The binary data is generated randomly by a helper function. If you view the data in a table containing a Binary reading or updating oleobjectxxxbin parts, Access will display the data as Unicode strings.

Be aware that what is displayed might not be an accurate representation of the data. So be discouraged to copy and paste the binary data displayed by Access around. You could lose data with that. But if it does, you now know there is the proper data type for that and you know how to create such a column in Microsoft Access.

I will never share your email with anyone. You can unsubscribe any time. Attributes Or dbAutoIncrField td. Attributes Or dbFixedField td. Append td End Sub. Can you create any index on an OLE Object column? Can you sort the data in OLE Object column? Still, we have the blatant wish to sort or index binary data. Binary to the rescue Unbeknownst to many, Access has a native data type for short binary data.

Fixed length Binary fields are always padded with zeroes to their maximum length. There are three ways available to create a Var- Binary column reading or updating oleobjectxxxbin parts a Microsoft Access database.

Append td End Sub 3. Copy an existing binary field A simple 3rd reading or updating oleobjectxxxbin parts to create a binary field in your table is to copy one.

Warning — What you see is not what reading or updating oleobjectxxxbin parts get If you view the reading or updating oleobjectxxxbin parts in a table containing a Binary column, Access will display the data as Unicode strings. Here are some problems and inaccuracies that can happen. Usually each character you see is actually two bytes, but at the end of the data it might be just be one.

There are several non-printable characters. They are represented by plain squares. So you may see several, visually identical, squares, but each of them may represent a different binary byte.

But if this data is considered to be a string Access does this when displaying ita zero-value-byte terminates the string. Access truncates the data then and displays only part of it. I hope enjoyed reading and learned something new.

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If you have pip or setuptools installed pip is included in Python 2. If you are looking for tools to analyze OLE files or to extract data especially for security purposes such as malware analysis and forensics , then please also check my python-oletools , which are built upon olefile and provide a higher-level interface.

Please see the online documentation for more information. You may extract the stream by using the openstream method on the OleFileIO object, but you will usually get a binary stream containing several picture files.

You may also extract it manually using tools such as SSView http: Then the only way I've found so far is to use file carving tools which are able to determine the beginning and the end of each picture in a binary file.

These tools are not always easy to use but if you're interested have a look at http: If you really need to automate the process then you have to study Microsoft specifications at http: I am trying to extract MS documents xls,doc,ppt embedded inside as their original documents , How can i achieve this?

Unfortunately there is currently no way to extract embedded MS Office documents with OleFileIO alone, because they are not stored as a single stream but as a collection of streams in a storage object see the ones starting with "MBD" in your example.

So extracting them requires to create a new OLE document from scratch, and to rebuild their structure with several streams. There might be alternative solutions: On bit systems, array. Replacing all the occurrences with array. I need to get the data values sheet from MSGraph. Is there a way to grep the data from the binary stream? Here are a few potential solutions:. I'm interested in just extracting all the text for.

Any ideas on how to do this? When I read a docfile and I go to print ole. Is there another format inside this stream I'd have to parse to just extract the text? In the process I discovered what I think is a bug based upon the assumption that the sectorsize is bytes.

This made the basic test program given above go from failing to working on a test zvi file format which has a byte sectorsize. I'm still playing around with using it further, but I hope that the success of reading the directory structure means the rest will work as designed. Thanks a lot for reporting the bug and providing a solution, Forrest.

I will publish an updated version soon, with other improvements. In the meantime, could you please send me sample ZVI files by e-mail, so that I check if everything works fine?

Date Time Attr Size Compressed Name If you abandoned can you host your code at github or bitbucket so people can clone easy and contiue supporting it. This project is not dead, but that's true I haven't touched the code for a while. I just created a repository on bitbucket for it, so that it is easier to contribute: See the issues page for known bugs and enhancements that have not yet been fixed in the code.

Please use it to report any other bug you might have found. I'm looking to write some python code that picks up TAGs that I'll embed within a word document. These Tags will serve as placeholders to insert content. I want my python code to read the word document, find the tags, and then execute appropriate handlers. For instance, one handler will be simply to look up the associated content from a database, and then inserting that content into the file.

Can anyone show a snippet of code that would read for a string, and replace that string with another? Should I simply be using Win32Com instead? I'd like to also manage more complex formatting from Python - such as creating tables - setting margins, etc. But that's down the road Unfortunately you can't do that with OleFileIO, because it is currently still a parser no editing , and it only parses the OLE2 structure, not the specific Word content. However, maybe you can achieve this using python-docx?

On a similar topic, I just published a new module to parse MS Word forms with tags, called pywordform. I passed a file to OleFileIO and got an error in this line I opened a ticket for this, will fix the code soon: This your library is really easy to get up and running to look at the structure of a Word doc, but what I am mainly interested in is the actual text.

I'd like to be able to get the 'WordDocument' portion of the stream and discard anything that isn't actual content so I'm left with just a plain text version of the document.

Following the examples it is easy to get the document to parse but outputting pieces of the stream still includes binary data. Is there a way to get only the text? I'm trying to parse uploaded documents to pull out key words for search indexing. This library is one of the few I have found that will handle old DOC formats.

So, let's say the OLE includes a stream "example. This would enable anyone to quite easily write new data into an OLE file, as long as the size and structure of things remain the same. I'm aware I might be breaking some checksums somewhere or something, but that's not an important issue in my case. Hi Rudolf, adding the possibility to write sectors and streams back to an OLE file is something that I plan to implement for a long time.

I think it would be easier to provide methods to overwrite a single sector, and then to overwrite an existing stream by data of the same size. This is recorded in this ticket: Except where otherwise noted, all content on this site www. Comments Comment viewing options Flat list - collapsed Flat list - expanded Threaded list - collapsed Threaded list - expanded.

Date - newest first Date - oldest first. Select your preferred way to display the comments and click "Save settings" to activate your changes. A lot of people including me would be very interested if you find a solution! The fix is to change all calls like array.

Did find a problem with it while using it on a bit system. I have made the suggested change in v0. Please tell me if it works. Here are a few potential solutions: Is this awesome project already dead or abandoned? Inserting content Unfortunately you can't do that with OleFileIO, because it is currently still a parser no editing , and it only parses the OLE2 structure, not the specific Word content.

Any advice would be appreciated! Can I get some help?