Why old .doc files fail where .docx works
A Word 97–2003 .doc is a completely different format from a .docx. Most online tools cannot open one at all. Here is what changes and what survives.
If a converter has ever told you your file “could not be read” when it opens perfectly well in Word, this is almost always why.
1Two formats with one name
A .docx is a zip archive full of XML. Anything can open it, and most tools do.
A .doc from Word 97–2003 is a binary format with an entirely different internal structure. It has to be read by a program that understands that structure specifically — and most online converters simply do not, which is why they refuse the file or return an empty document.
Renaming the file does not help. The extension is not what makes the difference.
2What we carry across, and what we cannot
We read the binary format directly and convert it. Most of the document comes across intact.
| Part of the document | What happens |
|---|---|
| Text and fonts | Converted, including legacy Gujarati |
| Tables | Kept, including the grid |
| Headings and paragraph formatting | Kept |
| Pictures | Kept where the file genuinely contains one |
| Drawn shapes and emblems | Not carried — see below |
| Automatic list numbering | Not carried from a .doc; the text remains |
3The letterhead problem
An advocate’s letterhead is very often not a picture. The emblem and the rules under the address are drawn shapes — geometry that Word composes at the moment it draws the page. The file contains no image to extract, because there is no image in it.
Carrying those across means implementing a vector graphics engine. We would rather tell you they are missing than quietly hand you a filing with no letterhead on it, so the converter reports exactly how many drawn objects it could not carry.
4The simplest fix, if you have Word
Open the file in Word and use File → Save As → Word Document (.docx). That conversion is done by Word itself, which understands its own old format better than anything else, and everything after it is easier.
If you do not have Word, upload the .doc as it is — we will read it.
Paste a paragraph into the free converter — it runs in your browser and nothing is uploaded. For a whole file, with its tables and formatting intact, use the full converter.