Plain-English guides to file corruption and repair.https://www.intactfile.com/enhttps://www.intactfile.com/blog/repairing-files-in-the-browser/https://www.intactfile.com/blog/repairing-files-in-the-browser/How IntactFile rebuilds broken MP4/MOV, ZIP, PDF, JPEG and more entirely client-side with WebAssembly — a clean-room moov reconstruction, honest outcomes, and no upload.Wed, 22 Jul 2026 00:00:00 GMThttps://www.intactfile.com/blog/codec-vs-container/https://www.intactfile.com/blog/codec-vs-container/The container is the box; the codec is the language inside. Which one broke decides whether you install a codec or repair the file.Tue, 21 Jul 2026 00:00:00 GMThttps://www.intactfile.com/blog/fix-corrupted-powerpoint-pptx/https://www.intactfile.com/blog/fix-corrupted-powerpoint-pptx/A .pptx is a ZIP of XML parts, so slides, text, and images usually recover even when PowerPoint won't open the deck.Sun, 19 Jul 2026 00:00:00 GMThttps://www.intactfile.com/blog/mov-vs-mp4-iphone-video/https://www.intactfile.com/blog/mov-vs-mp4-iphone-video/MOV and MP4 are near-identical containers. The real blocker is usually HEVC or a broken index — and only one is a repair job.Fri, 17 Jul 2026 00:00:00 GMThttps://www.intactfile.com/blog/recover-corrupt-sqlite-database/https://www.intactfile.com/blog/recover-corrupt-sqlite-database/What "database disk image is malformed" means at the b-tree level, and how a raw page walk salvages every decodable row into a clean file.Thu, 16 Jul 2026 00:00:00 GMThttps://www.intactfile.com/blog/rar-vs-7z-damaged-archive-recovery/https://www.intactfile.com/blog/rar-vs-7z-damaged-archive-recovery/RAR's recovery record repairs in-place damage; 7z has none and dies on tail truncation. What salvage can do either way.Thu, 09 Jul 2026 00:00:00 GMThttps://www.intactfile.com/blog/recover-obs-recording-after-crash/https://www.intactfile.com/blog/recover-obs-recording-after-crash/Why the forums say it's toast, why they're only half right, and how to record so it can't happen again.Tue, 30 Jun 2026 00:00:00 GMThttps://www.intactfile.com/blog/recover-gopro-dji-footage-after-power-loss/https://www.intactfile.com/blog/recover-gopro-dji-footage-after-power-loss/Why a dead battery strips the index but not the footage, the free in-camera fix to try first, and the reference-clip rebuild.Thu, 18 Jun 2026 00:00:00 GMThttps://www.intactfile.com/blog/is-it-safe-to-upload-files-to-online-repair/https://www.intactfile.com/blog/is-it-safe-to-upload-files-to-online-repair/What “upload” really means, which files not to send, how to verify a tool's behavior in DevTools, and the in-browser alternative that sends nothing.Sat, 13 Jun 2026 00:00:00 GMThttps://www.intactfile.com/blog/pdf-file-is-damaged-and-could-not-be-repaired/https://www.intactfile.com/blog/pdf-file-is-damaged-and-could-not-be-repaired/Why Acrobat's message points at a broken xref index, not lost pages, and how rebuilding it reopens the document.Tue, 09 Jun 2026 00:00:00 GMThttps://www.intactfile.com/blog/png-wont-open-chunks-crc/https://www.intactfile.com/blog/png-wont-open-chunks-crc/Per-chunk checksums make some PNG damage a clean deterministic fix and some rows permanently gone. Which is which.Thu, 28 May 2026 00:00:00 GMThttps://www.intactfile.com/blog/recover-corrupted-excel-without-excel/https://www.intactfile.com/blog/recover-corrupted-excel-without-excel/An .xlsx is a ZIP of XML, so values, formulas, and sheets usually recover even when Excel won't open the file.Tue, 19 May 2026 00:00:00 GMThttps://www.intactfile.com/blog/recovered-files-wont-open/https://www.intactfile.com/blog/recovered-files-wont-open/Recovery finds bytes; repair makes them a working file. Triage and format-by-format odds.Wed, 06 May 2026 00:00:00 GMThttps://www.intactfile.com/blog/why-half-your-jpeg-is-gray/https://www.intactfile.com/blog/why-half-your-jpeg-is-gray/How a JPEG is built, the three failure classes, and an honest read on what comes back whole and what's gone.Wed, 29 Apr 2026 00:00:00 GMThttps://www.intactfile.com/blog/avoid-corrupting-files-sd-cards/https://www.intactfile.com/blog/avoid-corrupting-files-sd-cards/A working photographer's checklist: the seven habits that prevent most card corruption, printable.Wed, 15 Apr 2026 00:00:00 GMThttps://www.intactfile.com/blog/fix-zip-unexpected-end-of-archive/https://www.intactfile.com/blog/fix-zip-unexpected-end-of-archive/Why a cut-off ZIP or RAR download loses its index but not the files inside, and how much still extracts.Wed, 08 Apr 2026 00:00:00 GMThttps://www.intactfile.com/blog/mp4-anatomy-moov-atom/https://www.intactfile.com/blog/mp4-anatomy-moov-atom/Inside the file format: boxes, the mdat data block, the index written last, and how it gets rebuilt.Fri, 27 Mar 2026 00:00:00 GMThttps://www.intactfile.com/blog/how-video-files-get-corrupted/https://www.intactfile.com/blog/how-video-files-get-corrupted/The five real causes of video corruption, and an honest map of which ones a repair tool can fix.Wed, 04 Mar 2026 00:00:00 GMT