.XPT - File Extension for XPCOM Typelib Files

Q

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What is XPT? XPT, short name for XPCOM Typelib, is used as the file extension for XPCOM Typelib files. XPCOM (Cross Platform Component Object Model) is a cross-platform component model from Mozilla. .XPT files are binary files. See the sample .XPT file included below.

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A

File Extension: .XPT

MIME Type: application/octet-stream

File Content: XPCOM Typelib

.XPT files are XPCOM Typelib files saved as binary files. Here are the first 64 bytes of a sample .XPT file, xpcom_base.xpt, dumped in HEX values:

58 50 43 4f 4d 0a 54 79 70 65 4c 69 62 0d 0a 1a XPCOM.TypeLib...
01 02 00 14 00 00 0a fc 00 00 00 22 00 00 02 51 ...............Q
80 00 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 ................
46 00 00 00 01 00 00 00 00 00 00 00 0d 03 3a 14 F...............

.XPT XPCOM Typelib file sample: Click sample.xpt to download.

For more information on .XPT XPCOM Typelib files, see links below:

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